Well I remember MS Sourcesafe being popular a few years ago. Do hg people "share less" or are there simply less of them? IIRC github allows commits from hg as

Well I remember MS Sourcesafe being popular a few years ago. Do hg people "share less" or are there simply less of them? IIRC github allows commits from hg as well as git. And of course not everyone (in fact possibly only the minority) is interested in cloning and issuing pull requests on OSS a huge amount of programming happens internally in corporations where everyone will use whichever VCS is mandated.