Nat Friedman has cofounded Xamarin, he understands Open Source and I'm sure he'll do well as CEO of GitHub. I'm cautiously optimistic about it.
Microsoft could pull a Skype of course, but on the upside this might turn out to be a good thing, as in this climate many businesses, operating at scale and giving away so many freebies, are struggling and GitHub could have been the next SourceForge.
Who knows, maybe they'll even open source it. Fingers crossed.
I agree that Nat Friedman seems to be the right CEO for GitHub. I've observed him on Twitter in the past few months and his behaviour has been top notch. Words are worthless and what only matters is action. In the last weeks, he actually took the time to reach out to actual project maintainers and contributors to listen to what they want.
Microsoft won't ruin GitHub. Windows's ecosystem need developers more than ever. Developers are on GitHub. They simply can't screw it up.
Microsoft has made huge strides towards development on windows. WSL is amazing. I have yet to find a better window manager than windows, and I still get to use bash.
I don't need a window manager. Give me a single god damn command line that's consistent with the rest of the world. Not this ancient cmd.exe abomination which is completely incompatible with this powershell garbage which is completely incompatible with this half-baked wsl which is not cygwin or mingw or blah blah blah. Bash and posix with forward slashes as first class citizens please and take your dos garbage and shove it.
WSL is not perfect, but it's good enough for a lot of use cases if you're stuck on Windows.