GitHub is to git like Reddit was to forums. Centralized usernames and such were very nice, but it also has downsides that we’re now living with.

GitHub is still really, really nice in that it’s five seconds to throw up a repo that’s accessible worldwide (98% of the time lol) and everyone’s on there. Whatever replaces it (just like whatever replaces twitter) may be better in many ways, but it will be “worse” in others, even if just in splintering.