Reddit Self-Promotion Rules: How to Post About Your Product Without a Ban

Almost every founder who tries Reddit as a channel has the same experience: a few good replies, some genuine interest, and then a post that vanishes without explanation. Sometimes the account goes with it. The rules feel arbitrary from the outside. They mostly aren't — they're just unwritten in places and inconsistently enforced.

Here's what actually governs this.

There are three layers of rules, not one

Reddit's sitewide policy prohibits spam and vote manipulation. This is the layer that produces account-level bans and shadowbans, and it's mostly automated. It cares about behavioural patterns: posting the same link repeatedly, an account whose entire history is promotional, sudden bursts of activity across many subreddits.

Subreddit rules are set by volunteer moderators and vary enormously. Some ban self-promotion outright. Some allow it in a weekly thread only. Some require a minimum account age or karma. These produce post removals and subreddit bans. They're in the sidebar, and almost nobody reads them.

Community norms aren't written anywhere and are the layer most founders violate. This is what determines whether your technically-permitted reply gets upvoted or buried.

The 9:1 rule, and what it really means

Reddit's own guidance has long suggested that for every one self-promotional post, you should have roughly nine that aren't. The exact ratio is less important than the principle behind it, which is: your account should look like a person who participates, not an account that exists to promote.

A moderator glancing at your profile is making one judgement in about four seconds — is this a member of the community or a marketer? An account with 40 comments, three of which mention a product they built, reads as the former. An account with 5 comments, all linking the same domain, reads as the latter, regardless of how helpful each comment was.

This is worth internalising because it changes the strategy. You cannot show up cold, reply to three high-intent threads, and expect it to work. The participation has to be real and it has to come first.

What actually triggers a shadowban

A shadowban is the frustrating one: your posts appear normal to you and are invisible to everyone else. You can be shadowbanned for weeks before noticing. The usual triggers:

• Posting the same URL across multiple subreddits in a short window
• A new account posting links immediately, before building any comment history
• High link-to-comment ratio in your overall history
• Anything that looks like coordinated voting — including asking friends to upvote

Check whether you're shadowbanned by opening your profile in a logged-out browser. If your posts aren't there, they aren't there for anyone.

The reply format that consistently works

For replying to a thread where someone is asking for a recommendation — which is where most of the value is — this structure holds up:

1. Answer the actual question first, in enough detail to be useful on its own. If the whole comment were deleted except this part, it should still have helped them.
2. Mention alternatives honestly, including ones that aren't yours. If a competitor genuinely fits their described constraints better, say so.
3. Disclose, then mention yours briefly. "I build [X], so obviously I'm biased, but it handles the [specific thing they mentioned] case." One or two sentences.
4. Don't link unless asked, in subreddits where linking is contentious. "Happy to share a link if useful" gets you the click and costs nothing.

The disclosure is the part founders resist and it's the part that works. Reddit's objection was never that you have a product. It's being marketed to by someone pretending not to be marketing.

Things that will get you removed, reliably

• Copy-pasting the same reply across threads. Moderators and users both spot this instantly, and it's the fastest route to a sitewide flag.
• Replying to every mention of your category. Being ubiquitous reads as astroturfing even when each individual reply is fine.
• Arguing with someone who criticises your product in public. You will not win and the thread becomes a permanent search result.
• Using multiple accounts. This is the one that produces permanent, unappealable bans.
• Posting a launch announcement to a subreddit with no launch thread. Check the sidebar.

The frequency question

A sustainable cadence for a founder is roughly two to five substantive comments a week across two or three subreddits, of which maybe one mentions your product. That sounds like very little. It is deliberately very little — this is a compounding channel, and the accounts that do well in it have been present for months.

The counterintuitive part: the constraint is not finding threads, it's restraint. Once you're monitoring properly you will see far more relevant threads than you should reply to. Picking the best two or three a day and ignoring the rest is the skill.

Practical setup

Before you start: use a real account with existing history if you have one, read the sidebar of every subreddit you plan to participate in, and spend a week commenting on things that have nothing to do with your product. That week is not wasted — it's the thing that makes everything afterwards permitted.

For finding the threads worth your limited replies, Brew Me A Coffee scores posts across Reddit, Hacker News, and GitHub Discussions for buying intent and urgency, so the two or three you pick each day are the two or three that mattered. It never posts on your behalf — for all the reasons above, that would be the fastest way to lose the account.