What UGC link means
A UGC link is marked with rel="ugc", meaning it came from user-generated content like a comment, forum post, or community profile, rather than the site's own editorial content.
A founder who drops their product link in a community forum's comment section is likely creating a UGC link — useful for reaching real people reading that thread, but treated cautiously by search engines as a ranking signal.
A UGC link is not worthless for search purposes, and it is not the same as spam. It simply reflects that the link came from a user, not the site owner, so it carries less weight.
Judge a UGC link by whether real people will actually see and click it in that community, rather than by any expected search ranking benefit.
Why this matters for builders
Community and profile links are often UGC — still useful for people, weaker as authority signals.
Mistake builders make often
Some builders drop product links across dozens of forum comments hoping for a search ranking boost, when those UGC links carry little weight for that purpose.
What to do now
Check link types with the Dofollow/Nofollow Checker and read Dofollow vs nofollow to set realistic expectations for community links.