How do founders use Reddit and niche communities to find customers without getting banned?

Reddit is high-intent and allergic to marketing, so the play is 90 to 95 percent genuinely helpful participation, full disclosure that it is your product, and weeks of account building before you ever drop a link. Monitoring tools surface the threads where people are already asking for what you sell. Founders who do this well consistently report it as their cheapest and best-converting channel.