Reddit marketing: 19 of 27 subreddits limit self-promotion

The first thing our Reddit channel produced was a table. On 11 October 2026 it holds 27 subreddits, and next to each one the rules as someone read them in September. 19 of the 27 have written down a condition for what we came to do, which is mention a product. No post has gone out yet, so this article is about the preparation, because that's where the numbers are.

What is Reddit marketing?

Reddit marketing for a software product is being useful in the threads where your buyer already asks a question, and naming the product only where it's the answer. It looks like support, not advertising: the reader arrived with a problem, and the reply either solves it or doesn't. Reddit's own rules frame it from the platform's side: rule 2 asks you to participate authentically in communities where you have a personal interest, and not to spam. The page names no posting ratio and never says self-promotion, so the numbers live in each community's own rules. We don't have a comment that out-earned a month of ads, so this article doesn't open on one.

What works on Reddit for a software product?

Five practices come up in the rules of our 27 subreddits again and again, and each has a community that wrote it down.

• Answer the question asked. r/startups wants posts that discuss methods, experiences and markets without the name or URL of your own project, so the answer carries the substance and the product waits.
• Show the work. r/ClaudeAI welcomes a project built with or for Claude when the post says what it does and how Claude helped, and when people can try it for free.
• Disclose the product. r/mcp allows self-promotion if you say how you are connected to the product, and bans the same promotion posted as a bystander.
• Use the promo thread. r/webscraping allows self-promotion only in its pinned monthly thread; r/AI_Agents sends projects to a weekly project display thread.
• Never post the same text twice. r/hermesagent removes a near-identical post that appears in 3 or more subreddits within 24 hours, and identical copy-paste every time.

The strictest number we found is in r/SaaS: a maximum of 1 mention or 3 links every 60 days, affiliation disclosed at the beginning or end of the post or comment, and secondary accounts promoting the same product count toward the same limit. A violation leads to a ban and URL blacklisting. We read that in the community's sidebar on 11 October 2026.

Where does an AI agent help?

An AI agent helps with the four jobs that eat the hours before a reply exists: finding threads, reading them whole, drafting in the voice of the account, and keeping a log of what was said where. The reader's side is agents that read Reddit for you: you tell the agent which subreddits and which question, and it comes back with a short list.

A search round can be recorded once and replayed. Scalebrowser's workflows are 3 tools that record a stretch of agent work and replay it later, finding each element again on the page as it is and drawing a fresh rhythm for each profile.

Which steps stay with a person?

Three steps stay with a person: posting, answering follow-ups, and judging tone. The account a reply goes out under belongs to somebody who reads what comes back, and a follow-up question a day later needs the same voice as the first answer. Tone is the third, and our map shows why: r/SaaS, r/Entrepreneur and r/LocalLLaMA ban AI-written text in their rules. In those three, the agent hands over the thread, the facts and the log, and the person writes the reply.

What did our own Reddit channel show?

On 11 October 2026 our Reddit channel had 27 subreddits mapped, 19 of them with a written condition on promotion, and no post published. We read the rules of each community on 9 and 13 September, so they are 28 to 32 days old. That's too old to trust: the live sidebar of r/SaaS lists 11 rules on 11 October, and our September read holds 5, so every rule gets read again before a post goes out.

(opens in a new tab)

Two of those rows shape the plan. Only 6 of 27 have a promo thread, so in the other 21 the only way in is an ordinary thread, and the rule that counts is the one about disclosure. And 4 of the 27 have between 9 and 36 members, which makes them listening posts at best.

Scalebrowser gives each agent its own isolated browser with a persistent identity, on your own machine, so a run stays signed in, handles the captcha and finishes without anyone watching it.

See how Scalebrowser does it

The number you'd ask for first, sign-ups per comment, stays empty: with 0 comments posted, there's nothing to divide. The posting times are empty too, 0 of 27: the first sample reads each subreddit's 100 best posts of the last month, and that step hasn't run yet. When posts exist, this article gets a second table with posts, comments and sign-ups per comment, each with its date.

Can a short video carry a Reddit post?

A short video can carry a post in the communities that allow one, and a run of the agent produces it as a by-product. r/SideProject switched image posts off and allows videos and links, according to our notes of 13 September, and r/ClaudeAI pins a thread called "Show us what you've created with Claude!" under the flair Built with Claude. Scalebrowser records a run and renders it into a demo video of the run; the videos documentation describes the recording.

Which listings come after Reddit?

Directories come after Reddit, because a listing is submitted once and then stays on one page with one link. The work there is a form, and the numbers are acceptances and visits; ours are in directory listings with our numbers.

Where does the browser run?

The browser runs on the machine of whoever uses it, so every account stays signed in where its owner works. That's the browser behind the drafts: the agent reads and writes notes there, and a person posts. The overview of use cases lists the other jobs, and repeat work is the one this article is.