> Also from my experience of trying to leave GitHub, you just end up having a couple of projects on your alternative platform, and everything else on GitHub.

> And if you want to build a community, you will quickly find out that the majority want to stick to GitHub, and leaving it can kill your projects chances of getting contributions.

That's a defeatist attitude and a self-fulfilling prophecy at the same time. As more and more people leave GitHub (hopefully not to go to the same alternative), it becomes less and less of a must-have. The reason these things are somewhat true today is because of the network effect, and it's precisely that effect which we must actively attempt to squash by leaving.