In the case of GitHub, yeah. I don’t think a Microsoft source control “social network” would have taken off in the same way GitHub did.
In fact when Microsoft purchased GitHub, quite a few people did leave and close their account. But GitHub already had such a monumental market lead that the departures ended up being a drop in the ocean.
To be honest, I’m still waiting for the moment when Microsoft managed to fuck it all up like they did with Skype.
Don't forget prior to GitHub Microsoft ran the home-grown, TFS-enabled Codeplex. It worked quite well if using Visual Studio but obviously, like Skype, there was no reason to run it when "something better" came along.
In fact when Microsoft purchased GitHub, quite a few people did leave and close their account. But GitHub already had such a monumental market lead that the departures ended up being a drop in the ocean.
To be honest, I’m still waiting for the moment when Microsoft managed to fuck it all up like they did with Skype.