Reddit / public forums
Topics with active public threads where you can be genuinely helpful.
Participate in open threads.
Reddit and public forums are places where people ask questions, share opinions, and look for recommendations about specific topics in the open. Unlike social media feeds, forum threads are searchable and index in Google, so a helpful reply from two years ago can still bring in a reader today. The audience is self-selected: someone in r/SaaS asking about pricing tools is further along in considering the problem than someone who sees a banner ad.
The channel works on a simple principle: be useful before you promote. Communities on Reddit and similar forums (Hacker News, Quora, niche industry forums) have strong norms against self-promotion, and accounts that lead with sales pitches tend to get flagged or ignored. The path that works is answering questions thoroughly and mentioning your product only when it is directly relevant and the disclosure is transparent. Done consistently over weeks or months, this builds a recognizable presence in the communities where your buyers spend time.
When it fits
- There are active subreddits or forums where your target buyers gather and ask the kinds of questions your product addresses.
- You can answer questions with substantive knowledge, not just product mentions. The floor for contributing usefully is real expertise or genuine experience.
- The channel suits the early stage, when the cost of time is the main constraint and you cannot yet afford scaled paid acquisition.
When it doesn't
- The relevant forums have strict no-promotion policies and the mods enforce them, making even transparent disclosure unwelcome.
- Your product addresses a topic too niche to have active public discussion threads. If the subreddit has 500 members and one post a week, the ceiling is low.
The trade-off
Reddit and forum participation is among the lowest-cost channels available — the only real cost is time — and the semi-durable nature of indexed threads means useful replies can keep working for years after they were written. The limitation is that it requires genuine expertise and consistent engagement, which means it is slow to build and not easily delegated. It is best thought of as a complementary channel that reinforces visibility and trust while other channels drive volume.
How to run a first test
Forum participation can show early signal in a few weeks with no media budget required:
- Use GummySearch to identify the most active subreddits where your buyers discuss the problem your product solves. Look at post frequency, comment depth, and the types of questions being asked.
- Create or refine an account with a genuine profile — including relevant history — before posting anything promotional. A brand-new account with no history that immediately promotes a product signals spam.
- Spend the first two weeks only contributing: answer questions thoroughly, share resources, engage with others' posts. Do not mention your product yet.
- Once you have established a presence, respond to threads where your product is genuinely relevant with a transparent disclosure ("I built something for this exact problem") and a link. Track how many people click through and what they do when they arrive.
- Set up F5Bot to receive alerts when your keywords appear in new Reddit posts, so you can respond to relevant threads as they are published rather than finding them days later.
See Systematic Channel Testing.
Tools & services to activate it
- GummySearch — Reddit audience research tool for finding relevant subreddits, trending posts, and the problems your buyers discuss. (Free tier; paid from ~$29/mo)
- F5Bot — Free keyword alert service for Reddit and Hacker News — notifies you when your terms appear in new posts. (Free)
- Brand24 — Social listening and mention monitoring across Reddit, forums, news, and social media. (From ~$99/mo)
Related channels
More in Communities: Vertical community / sponsorship, Slack / Discord groups.