[It should be overly clear that] there's nothing special in wanting to have control in one's own processes, in wanting to avoid monopolies, and for free software projects to want to rely on free software. There are also many other reasons to want to avoid github specifically (there's at least a "github is down" thread every month on HN these days - having something that works at all is one of them).

Many important free software projects use there own self hosted solution.

I don't even understand how this is a question, and your parent comment is needlessly inflammatory and didn't deserve any answer.