My Substack Content Strategy: A 90-Day Experiment

You spend hours on a Substack post, hit publish, and then watch it disappear. A couple of likes. No meaningful replies. No new subscribers you can clearly trace back to the piece. Then comes the part that drains you most. Copy-pasting chunks into LinkedIn, trying to force the same idea into X, opening five tabs just to schedule one week of promotion, and eventually giving up because the distribution work feels bigger than the writing itself. That was the trap I was in. The writing wasn't the problem. The system was.

My Substack Was a Ghost Town So I Ran an Experiment

Monday morning, I would open Substack, see the post I had worked on all week, and realize it was already slipping out of view. A few opens. A couple of polite likes. No clear subscriber lift. By Tuesday, the piece was effectively over.

That pattern repeated long enough that I stopped blaming the writing.

The core problem was operational. I was treating each post like a finished product when it should have been the raw material for a week of distribution, testing, and reuse. So I turned the newsletter into a 90-day experiment and gave myself rules I could follow even on low-energy weeks.

I kept the system simple. Every post had to do three jobs:

• Reward existing subscribers: the email itself had to justify attention.
• Create new entry points: the core idea had to work in formats that could travel outside my inbox.
• Produce feedback I could use: each send had to show me what angle, structure, or hook earned response.

That single change made my Substack content strategy measurable instead of aspirational.

I also added one filter that saved me from publishing fuzzy ideas. If I could not turn a draft into at least three follow-on assets, usually a short post, a thread, and a comment-driven social variant, the idea was not clear enough yet. It either needed a tighter argument or a narrower promise.

Manual distribution was still the hard part. Writing the newsletter felt finite. Repurposing felt like starting over after I had already spent my best energy. That gap is where a lot of newsletters stall. The post goes out, the writer feels finished, and the idea dies in the archive instead of reaching new readers through repeated exposure.

If that sounds familiar, start with a sharper plan for how to get more Substack subscribers, then build your workflow around distribution capacity, not writing ambition alone. I also borrowed from a thought leadership content strategy for AI because the underlying problem is similar. Strong ideas do not spread on quality alone. They spread when each idea is packaged for more than one context.

By the end of week two, the experiment already felt different. I was no longer asking, "Was this post good?" I was asking, "Did this post earn enough response to justify another round of distribution, and did the format make that easy?"

That shift gave me something I had been missing. A repeatable operating system.

Defining the 4 Content Pillars That Built My Foundation

The first thing I fixed had nothing to do with posting frequency. It was topic chaos. Before the experiment, I was writing whatever felt urgent that week. Some posts were tactical. Some were personal. Some were half-finished thoughts dressed up as essays. Readers couldn't tell what to expect, and neither could I.

So I built four content pillars and used them as editorial guardrails.

The four pillars I used

1. Cornerstone content
   These were deep dives. They carried the core argument, the original thinking, and the ideas I wanted to be known for. I wrote them with search in mind, but also with email readers in mind. They had to stand on their own months later.

2. Quick-win guides
   These solved one narrow problem fast. They were easier to write, easier to share, and often easier to repurpose. When a reader thinks, “I can use this today,” they remember you.

3. Community case studies
   I added outside voices, examples, and breakdowns of what other writers were doing well. This prevented the newsletter from becoming too self-referential and gave me natural conversation starters for outreach.

4. Behind-the-experiment posts
   These documented what I was testing, what failed, and what I changed. They built trust because they showed process, not just polished conclusions.

Why pillars matter more than inspiration

A good Substack content strategy doesn't start with a content calendar. It starts with a content library. Pillars make that possible. They help you build topic clusters that train readers and search engines to understand what your publication is about.

That structure also makes repurposing easier. When every post belongs to a known pillar, you can create recurring series, reuse framing, and cross-link related ideas without sounding repetitive.

A useful companion to this approach is this piece on thought leadership content strategy for AI, especially if your writing sits at the intersection of expertise, opinion, and distribution.

When readers can predict the kind of value you publish, they subscribe for the next issue instead of judging every issue in isolation.

The data behind the foundation

A 2024 study found that newsletters with clear topic clusters and SEO-optimized posts using subheadings and internal links generated 40-60% more organic traffic six months after publication and saw 35-50% higher subscriber-to-revenue conversion, according to this analysis of newsletter content strategy.

That finding matched what I was seeing in practice. My most useful posts weren't just better written. They were easier to categorize, easier to link, and easier for a new reader to enter through.

How to build your own pillars

If you're setting this up from scratch, don't start with fifteen categories. Start with four buckets that can hold almost everything you want to publish.

Use this quick test:

• Core expertise: What can you explain at depth without faking confidence?
• Practical problems: What recurring question does your audience keep asking?
• Fresh perspective: Where can you interpret trends instead of just reporting them?
• Transparent process: What are you actively learning that readers would benefit from seeing in real time?

If you need help turning those buckets into actual post ideas, a structured prompt list like these content ideas for social media can help bridge the gap between a pillar and a publishable angle.

My Weekly Cadence for Publishing and Promotion

Once the pillars were set, the next problem was execution. Weekly publishing advice sounds simple until you try doing it while also handling editing, scheduling, Notes, social posts, and replies. I needed a rhythm that removed daily decision-making.

So I used a fixed seven-day loop.

My weekly schedule

Here's the cadence that held up during the experiment:

Day	Focus	What happened
Monday	Outline and research	I picked the angle, gathered examples, and defined the one thing the post needed to do
Tuesday	Publish day	Long-form article went live in the morning
Wednesday	Notes and outreach	First wave of Notes, plus direct messages to peers or collaborators
Thursday	Social adaptation	LinkedIn version and X version got tailored, not copied
Friday	Follow-up distribution	Second push with a different hook
Weekend	Review and reshare	I checked signals, replied to comments, and reshared if the topic still had legs
Sunday	Prep the next cycle	Notes from the week became inputs for the next draft

Why this worked

The point wasn't to stay busy every day. The point was to keep one article moving through multiple surfaces without rewriting the whole thing from scratch each time.

Substack's own growth playbook advises creators to publish at least once per week for each audience tier, and argues that predictable publishing trains reader behavior and supports compound growth over time, as noted in Substack's Grow playbook. That principle became much easier to follow once I tied it to a real weekly operating rhythm.

The promotion checklist I repeated

After publishing, I didn't ask, “Should I promote this?” I ran a checklist.

• Queue the first Note: Summarize the sharpest point from the article with one clear reason to click.
• Send a small peer message: Not a blast. A personal note to a few people who care.
• Adapt one teaser for social: The first post was usually curiosity-driven, not summary-driven.
• Mark a reshare angle: If the first social post emphasized the problem, the second one emphasized the takeaway.

Workflow rule: Publish day is not the finish line. It's the start of the distribution week.

I also learned quickly that trying to schedule Notes manually across a busy week creates friction. If Notes are part of your Substack content strategy, they need the same discipline as the main post. This walkthrough on how to schedule Notes on Substack is useful if your current process still depends on remembering to post in the moment.

The Repurposing Workflow That Unlocked My Growth

This was the turning point.

Before the experiment, I treated repurposing like optional extra credit. During the experiment, I treated it as part of writing. That mental shift mattered more than any template.

I stopped asking, “How do I promote this post?” and started asking, “How many clean, native formats can this idea support?”

The manual workflow I used

For each long-form article, I manually pulled out:

• Substack Notes: Short insight-led posts tied back to the main piece
• LinkedIn posts: Usually one contrarian angle and one tactical angle
• An X thread: A tighter, more sequential version of the argument
• Reshare variants: New hooks for the same article instead of repeating the same caption

This took real time. The manual grind was the price of learning what translated well across formats.

Here's the pattern I used most often:

For Notes

I kept them short and directional. One idea, one hook, one path back to the article.

A useful benchmark came from an analysis that found newsletters that repurposed each new post into Substack Notes saw an average 15-25% increase in new subscribers over three months, and Notes posted between 7-10 a.m. local time generated 18-22% higher engagement, according to this analysis of Notes performance.

That matched what I saw. Notes worked best when they were not mini-essays. They worked when they opened a loop.

My repeatable post formats

For LinkedIn, my best-performing structure was:

• Hook: State the problem in a way working writers recognize
• Insight: Share the change in thinking or process
• Proof: Mention the exact action or observation
• Question: Invite readers to respond from experience

For X, I relied on a numbered thread when the article had a sequence. If the article was more opinionated, I used a stronger first post and fewer supporting tweets.

Here's a practical example of what changed:

Platform	What didn't work	What worked
Substack Notes	Generic article announcement	One takeaway with a reason to click
LinkedIn	Copying the intro paragraph	Reframing the lesson for professional context
X	Dense summary	A sequence with one idea per post

A good repurposing system doesn't duplicate. It translates.

Here's a useful walkthrough before you watch the next example:

What most guides miss

Most Substack advice stops at “share your newsletter everywhere.” That's incomplete. You need a cadence, a format library, and a reason for each version to exist. Otherwise, cross-posting just creates repetitive noise.

That's why I now think of each article as a distribution center, not a destination. The article holds the argument. The repurposed assets open doors to it from other platforms.

If you want examples of how to adapt one piece into multiple formats without flattening your voice, these content repurposing strategies are a solid starting point.

Tracking the 3 Metrics That Actually Mattered

The experiment only became useful because I tracked it like an operator, not like a hopeful writer. I ignored page views. I ignored likes unless they led to conversation. I cared about signals that changed what I would publish next.

Three metrics mattered.

Subscriber growth per article

I wanted to know which posts brought in subscribers. Not which posts felt important to me. Not which ones got compliments. Which ones converted interest into permission.

That forced me to compare pieces objectively. Some essays I loved built affinity but didn't expand the list. Some tactical posts kept attracting new readers long after I'd published them.

Email open rate

Open rate mattered because it told me whether my framing and trust were improving. According to platform-level reporting from 2026, Substack newsletters average over a 45% email open rate and around a 20% click-through rate, as summarized in this Substack usage and engagement roundup. I used that as a benchmark, not a guarantee.

If a post underperformed on opens, I looked first at the promise. Was the subject too vague? Did the title sound clever instead of useful? Did the audience understand immediately why this issue mattered?

A weak open rate often points to a positioning problem before it points to a writing problem.

Cross-platform conversion

This was the metric that changed my behavior most. I wanted to know whether repurposed content on LinkedIn and X was sending qualified attention back to Substack.

I tracked that with built-in analytics and tagged links. That let me answer practical questions:

• Which platform sent clicks
• Which format earned subscribers, not just reactions
• Which topics traveled well beyond email
• Which hooks attracted the wrong audience

The dashboard was simple

I didn't use a complicated stack. I just kept a repeatable view of post-level performance and compared articles against each other. The value came from consistency, not sophistication.

If you're doing this manually, start with one sheet and one review block every week. If you want a cleaner process, use a system that centralizes source tracking and post performance. This guide on Substack metrics tracking covers the basics well.

The main lesson was blunt. Good instincts are helpful. Feedback loops are better.

The Results 250% More Subscribers and My New System

On day one, my Substack felt quiet. I was publishing, but I was still guessing. Ninety days later, I had a system I could repeat.

My subscriber count grew by over 250% during the experiment. My average open rate climbed from 42% to 58%. And 40% of new subscribers came from repurposing on other platforms.

Those numbers mattered because they came from a controlled test on my own account. I kept the topics within the same four pillars, published on a fixed schedule, and tracked where subscribers came from. That made the takeaway clear. Growth did not come from writing more. It came from reducing randomness in what I published, when I promoted it, and how often each idea got redistributed.

What I kept and what I dropped

I kept the pillar system because it made ideation faster and gave the archive a shape readers could understand.

I kept the weekly cadence because it reduced decision fatigue. I stopped improvising promotion after publish day because it rarely produced meaningful results. I also stopped treating the article itself as the finished product. For a Substack writer who wants consistent growth, the article is the source asset. The essential work continues after send.

Why the manual version stops scaling

The friction showed up fast.

Writing one strong post each week was manageable. Turning that post into Notes, LinkedIn posts, X threads, follow-up variations, scheduled reposts, and performance reviews created a second layer of work that was much harder to sustain. The system worked, but only if I had the time and attention to run every step manually.

I started using Narrareach for that reason. It handles scheduling, cross-platform distribution, analytics, and repurposing across Substack, LinkedIn, and X in one workflow. The practical benefit is simple. It helps me keep a proven distribution process running even during busy weeks, instead of letting strong posts disappear after one send.

The broader point is the one I wish more Substack strategy guides made earlier. The upside is rarely limited by writing quality alone. It is often limited by whether the writer has a repeatable way to extend the life of each piece.

A strong Substack content strategy is simple to describe and harder to run. Write with depth. Publish on a real cadence. Repurpose with intent. Track what earns trust and what earns subscribers. Then make the workflow light enough that you can keep doing it for the next 90 days, not just the next two weeks.