> The major downside, as I see it, is that it's just not as popular.
Has anyone really thought of this? Do people just happen on to a github project because "it is on github" or because someone linked their work and people liked it and wanted to contribute?
Would React, D3, Rails, Bootstrap etc not get what they do now simply because "oh I don't have a bitbucket account, I'm not going to bother"
To me at least this kind of argument (I hear a lot of, nothing personal davesque!) is along the lines of "everybody is on MySpace"