The Costly-Signal Subscription Model
Subscribers granted you access to their brain — stop apologising for using it.
- Difficulty
- Easy
- Time to result
- ~months to results
- Steps
- 6
- Confidence
- 87%
Most new creators strangle their own business out of fear of what their audience will think: they publish less than they should, delay charging, and refuse to take breaks. Monga's reframe is that subscribing is a costly signal — far heavier than a follow — so subscribers have already granted permission to publish more, to charge, to rest, and to recommend others. The framework turns that reframe into a starting sequence built on preserving optionality rather than committing to an identity up front.
Origin
Sachin Monga's diagnosis of the most common Substack pitfall, developed live with Lenny Rachitsky, who had to be talked into turning on payments by Chris Best and into taking breaks by Hamish McKenzie. Draws explicitly on Kevin Kelly's 1,000 True Fans and his essay You Are Not Late.
Core principles
- 01A subscribe is a costly signal, not a follow — it grants standing permission, not conditional tolerance.
- 02Paying subscribers are forgiving: they are there to support you and want you to take the break.
- 03The people who would pay you but don't know you exist vastly outnumber the people you might annoy.
- 04You are not late — the market for any real niche is far bigger than it looks from the inside.
- 05Do not decide up front whether this is a hobby or a media empire. Open up optionality and let the evidence tell you.
- 06The bottleneck is continuation, not initiation. Starting is easy; keeping going is the whole game.
How to run it
- 1
Start before you have a plan
Publish, get a way to gather subscribers, put the link somewhere, write one or two things. If writing isn't your medium, post a video or record audio as a podcast. Set the stakes low publicly — announce it as an experiment, not a career.
Pro tip If you already have a following elsewhere, this is doubly urgent: an audience locked in one platform where you cannot reach them deterministically or monetize them is a tenuous asset.
- 2
Build the home base, not the biggest base
Accept that this will never be your largest audience. Its job is to be your most valuable audience — the one you own, whose email addresses you can export, and who receive your best work.
Watch out Optimizing your owned channel for raw follower count instead of value replicates the attention game you left.
- 3
Publish on a fixed cadence long enough to know
Ship consistently — weekly — for long enough to learn three things: do you enjoy it, do people keep valuing it, can you sustain it? Lenny ran nine months of free weekly publishing before deciding he could keep going.
Pro tip Expect slow and steady. Do not expect it to blow up; judge the decision to continue on your own enjoyment and reader retention, not on a growth spike.
Watch out You may discover you have created a job you don't like. That is a valid outcome and a reason to stop, not to grind.
- 4
Turn on payments earlier than feels comfortable
Kill the 'is it crazy to ask anyone to pay me?' question with arithmetic: 1,000 true fans at $10/month is roughly $100k a year. And if 1,000 people will pay, there are probably 2,000, 5,000, 10,000 — the markets for these niches are far bigger than they look.
Pro tip Free subscribers arriving from network discovery are a pool to upsell later, not a failure to convert now. Mentioning the paid tier inside free posts works.
- 5
Use the permission you were granted
Send more often than you fear. Take the vacation. Recommend other creators to your list. Invite guest contributors. Subscribers who granted a costly signal are there for all of it — and writers systematically underestimate this.
Pro tip Sharing recommendations back out is compounding, not leakage. Rotate through creators you genuinely rate, help each get to a meaningful number of subscribers, then move on.
Watch out This permission is not a licence to publish low-quality work at high frequency. The costly signal is granted for your best work.
- 6
Broaden the format so the job stays survivable
Writing a long-form piece every week forever is brutally hard. Widen into guest posts, a podcast, community threads, meetups — shift from sole producer to leader and curator of a space.
In the wild
Lenny signed up with no plan — he kept the default publication name 'Lenny's Newsletter' because it was auto-generated from his first name — and tweeted that he was just experimenting. He published free every week for nine months before deciding he enjoyed it and that people valued it, then turned on paid only after Chris Best convinced him to.
→ At 1,000 paid subscribers he was making around $100k a year — Kevin Kelly's 1,000 True Fans made real — and it kept growing well past the ceiling he had imagined, becoming his full-time work.
Cooper picks a topic, spends an enormous amount of time getting to the bottom of it, and publishes infrequently and inconsistently — but at the highest quality. Monga notes it would be a terrible advertising business.
→ It works precisely because he found his thousand true fans, who simply pay for it — proving the model supports depth over attention-game frequency.
Common mistakes
Managing an imagined audience reaction instead of the real one
Creators agonise over whether three sends a week is too much, whether asking for money is outrageous, whether a two-week holiday betrays paying subscribers. In almost all these cases readers are forgiving, want to support you, and want you to take the break. The fear is about your own sense of worth, not their tolerance.
Believing you are late
Lenny felt it was already too late when he joined three years earlier, and it wasn't. Kevin Kelly's You Are Not Late argues the same about the internet generally. Assuming the game is over is the pitfall that stops people starting at all.
Choosing hobby-or-empire on day one
Most people cannot know which one they want yet. Forcing the decision either inflates the setup burden or caps the ambition prematurely. Open up optionality and see what happens.
Is it for you?
Best for
Writers, operators and creators with an existing following elsewhere who are hesitating over starting an owned newsletter or turning on payments.
Not ideal for
Creators whose value genuinely depends on massive free reach and ad monetization, or anyone unwilling to commit to a sustained publishing cadence.
From the transcript
“Subscribe as like an action is pretty heavyweight. It's like a costly signal,”
“If someone is subscribed to you, they're kind of granting you right access to their brain.”
“readers, especially the people that are subscribed to you who are paying you, are pretty forgiving and are really there to support you and want…”
“It's kind of like many people won't know yet. Just open up optionality for yourself and see what happens. And maybe don't be too worried…”
“when I got to 1,000 paid subscribers, which feels very doable, I was making around 100k.”
“it took me 9 months of doing it every week for free to get to a point where I felt like I can keep doing…”
From the episode
Building Substack
Sachin Monga (Substack, Facebook)