I was under the impression that the implication of the parent comment was IC in the literally "individual" coder sense. If you're going to be that broad there are PLENTY of well known frameworks, not even worth listing, under both MIT and GPL, that are built by organizations, or VC-backed startups, and it's hard to compare "ease of making money".
Perhaps, but each of these organizations were started by a single person and then grew. Plausible is only 2 people if I recall correctly. So I'm not sure counting purely individuals makes sense. Sqlite even isn't one person, multiple people make pull requests.
