If the Microsoft purchase of Github wasn't a good indicator of the start of the end, this is it, I know a lot of people like to have "control" over things, but I have found so many fixes for software I use in un-merged PRs. Github moving towards closer and a closer system is good opp for alternatives to take some of that space. Nice.
I think you missed the part where open-source developers are begging Github to implement this feature and threatening to leave otherwise.