The One in Ten Rule Is Not Actually a Rule

A number everyone quotes and nobody sources

Ask anyone who has done marketing on Reddit about the platform's self-promotion rules and you will hear the same number within a sentence or two: one in ten. Only one of every ten things you post should be your own content, the rest has to be genuine participation with nothing to sell.

It gets repeated as though Reddit wrote it into a policy document somewhere. We went looking for that document. It does not exist.

Where the number actually lives

The ratio does appear on Reddit's own help centre, which is why the belief that it is official is so persistent. It sits in an article called Reddiquette, and the specific line reads: "a widely used rule of thumb, i.e. only 1 out of every 10 of your submissions should be your own content."

That looks authoritative until you read the sentence sitting directly above it, which is the article describing what Reddiquette actually is: "an informal expression of the values of many redditors, as written by redditors themselves." The page is explicit about its own status. It is a norm the community wrote down, hosted on an official domain, not a rule the company enforces.

What is missing from everywhere it would need to be

We checked the documents that would actually carry legal or enforcement weight if this ratio were real policy: the Reddit Rules, the User Agreement, the Data API Terms, the Responsible Builder Policy, and the spam policy. The number appears in none of them.

What those documents contain instead is qualitative language. The Reddit Rules ask people to participate authentically in communities where they have a personal interest, and not to spam or engage in disruptive content manipulation. The spam policy flags mass posting of repetitive content for exposure or financial gain as a violation, and adds that individual community moderators adjudicate what counts as unwanted content in their own spaces. No ratio, anywhere.

Why this distinction is not just pedantry

It would be easy to treat this as a technicality that changes nothing practically, since accounts that ignore the spirit of the ratio still get removed. That is true, and it is exactly why the distinction matters.

An official numeric rule would behave predictably. You could compute your ratio, stay under the threshold, and expect consistent treatment. An informal community norm, enforced by individual moderators applying their own read of a page that calls itself informal, behaves differently. Two subreddits can and do apply very different tolerances. A ratio that gets you removed from one community might be perfectly fine in another, because there was never a single official number to be consistent about in the first place.

The practical version of this rule is not "post no more than one promotional item per nine others." It is closer to "the account needs a visible history of showing up when it has nothing to sell, in whatever proportion the specific subreddit's moderators consider genuine." The nine to one figure is a useful, memorable proxy for that judgment. It is not a formula you can satisfy mechanically and expect uniform results.

The honest way to describe it

We try to hold every claim on this site to the same test: does the source actually say what it is being cited to say. The one in ten rule mostly passes that test, with a caveat that changes how it should be used. It is real, it is officially hosted, and ignoring it will get an account in trouble. It is also explicitly informal, absent from every enforceable policy, and not something a moderator is bound to apply consistently.

Treat it as the community's own shorthand for a judgment call, not as a formula. Aim for it, but do not mistake clearing the number for satisfying the actual expectation behind it, which is that the account is a genuine participant first and a promotional channel only occasionally.