Arvid Kahl: From 23 Subscribers to 7,600 — a $3,000/Month Newsletter Built Across 183 Issues After Selling His SaaS

Dollar figures in this article are paired with approximate yen conversions at ¥150/$1.

What does someone do next after selling a business for a life-changing sum? Arvid Kahl’s answer was a newsletter with 23 subscribers.

In 2019, Kahl and his co-founder sold FeedbackPanda, a productivity SaaS for online teachers. At the time of sale, MRR was $55,000 (about ¥8.25 million), built entirely without outside funding. About two months later, in November 2019, he started “The Bootstrapped Founder.” By the time Indie Hackers interviewed him, it was at issue 183, with 7,600 subscribers and $3,000/month (about ¥450,000) in revenue. Compared to the exit, the numbers are orders of magnitude smaller — but as a realistic endpoint for a one-person media business, this level of disclosure is valuable.

The numbers over time

Monthly revenue per subscriber: $3,000 ÷ 7,600 = about $0.39. Annualized, that’s roughly $4.7 per subscriber, a high rate by newsletter advertising standards.

What’s actually being sold

The revenue sources are sponsorships and paid classified slots. Each issue is structured with 2 main sponsor slots plus 4 classified slots at the end, for 6 total. His own information products get inserted from time to time. There’s no paid subscription model.

Production follows a fixed weekly rhythm. Monday covers ideation, topic selection, outlining, and finishing the draft. Tuesday through Wednesday, the podcast and YouTube versions get produced along with sponsor materials. Thursday is for editing the weekly issue, Friday for sending it out. The tools in use include ConvertKit (delivery), Notion (writing), Grammarly (proofreading), HelloPalladio (email templates), and Syften (social monitoring). One piece of writing gets expanded into four formats (newsletter, podcast, YouTube, and blog) all built into this weekly cycle.

There’s no dramatic turning point in this case

Between 23 and 7,600 subscribers, there’s no single viral issue and no growth hack described. What worked was consistency itself. His own words are the most direct explanation.

“Consistency is what keeps people coming back. When people see someone doing something for 200 weeks straight, they understand you’re serious about it.”

Issue 183 means nearly weekly publishing for over three and a half years. Divide the growth by issue count and it averages roughly 41 new subscribers per week, an unglamorous accumulation.

For acquisition, he cites posting each article on Twitter, SparkLoop referrals (offering access to unpublished materials as an incentive) and partner networks, and cross-linking between YouTube, the podcast, and the blog. But he names a different factor as the most effective one: “word of mouth gives the best results”, specifically, building relationships with fellow creators.

Unpacking the $4.7-per-subscriber breakdown

The reason $3,000/month works at a scale of just 7,600 subscribers lies in the readership.

The Bootstrapped Founder’s audience skews heavily toward founders bootstrapping businesses. This segment is itself the decision-maker pool for developer tools and SaaS purchases, meaning sponsors don’t optimize for CPM (cost per impression) but for cost per acquisition. What a general-interest newsletter would need tens of thousands of subscribers to charge, this newsletter achieves with 7,600 because of audience homogeneity. The sameness of the readers, not their number, sets the price.

Another factor is that Kahl’s own credibility lowers sales costs. He’s the person who sold a SaaS with $55,000 MRR, writing about the process itself. His approach to landing sponsors (re-approaching past sponsors, posting on Twitter, announcing open slots, and sharing his sponsorship page across every channel) is never about actively pitching. He says: “I try to find brands where there’s a founder who’s active on Twitter. It’s financially win-win, but what I really want is the relationship.” He treats sponsor slots not as ad inventory but as relationships between peers.

What isn’t working

Kahl has had multiple failed ventures, saying “many failed. Some failed horribly.” He names impostor syndrome as the hardest part of running the newsletter.

“The hard part is overcoming impostor syndrome. The question ‘who am I to be talking about this’ never fully goes away.”

The business’s ceiling also deserves attention. $3,000/month isn’t enough to cover a single person’s living costs in many countries. This business is viable because of other pillars (the sale proceeds, two books, a podcast, YouTube) not because the newsletter is self-sufficient on its own. Since revenue is entirely sponsorship-based, it takes a direct hit whenever ad budgets tighten. On top of that, with slot count fixed at 6 per issue, revenue’s ceiling is mechanically set by “slots × unit price.” That forces a choice: grow subscribers to raise the price, or add more slots and degrade the reader experience.

What’s reproducible and what isn’t

The production system is reproducible. Assign a fixed process to each day of the week, and expand one piece of material into four formats. This requires neither capital nor followers. Deliberately keeping the readership narrow, matched to what sponsors want to buy, is also adoptable regardless of scale.

What isn’t reproducible is the starting condition. By launch, Kahl already had tens of thousands of Twitter followers and a track record of selling a SaaS. It looks like starting from 23, but only the list was at zero, awareness wasn’t. What can be extracted from this case is a rough timeline: “write weekly for three and a half years about a domain where you have a track record, and you get 7,600 subscribers and $3,000/month”, not a claim that the same curve is achievable from anonymity. Conversely, for someone who has already sold or achieved something, writing about that experience every week can be the entry point to the next venture.

Related reading

• ScrapingBee’s path to exit — the numbers behind a bootstrapped SaaS grown around content, all the way to its exit.
• Sidekiq: over ¥100 million a year, solo — another one-person business built on credibility earned within a developer community.