[chomp]

This is definitely true. I think a couple things went wrong with Skype, the main problem is that it just didn't fit cleanly anywhere in their portfolio. They had some stuff that could consume it (Windows Phone needed a face to face video messenger to compete with Android/iPhone, Xbox Kinect had just came out and they could kinda put it in there, there was a need for it to maybe fit into business meeting use cases, and Live messenger usage was dwindling). These were all really different use cases and they kind of shoved it into all of them, and really broke Skype UX.

Github at (least for now) serves a clear purpose. Microsoft has been positioning itself in the developer productivity space. Right now they have Linux (some) and Windows code productivity tools (vscode and all of the Visual Studio stuff), and end services (Azure/SQL Server/Windows) but no source control or code deployment tools that anyone can speak to (TFVC and VSTS are used, not widely popular, and aren't free to use). I bet Microsoft will start integrating more of their services to use Github Enterprise, build out CI/CD features (or offering them in an online "app" store) in Github, and then continue building out their free developer toolset.