Not sure why Visual Studio Team Services is in scare quotes -- that's the product's name. And it's not an open source hosting service, which handily explains why Microsoft's open source isn't hosted there.
Disclosure: I'm a PM on VSTS/TFS, and I own part of version control.
Are those scare quotes or just regular old quotes? TFS and associated technologies have been through a lot of names (Visual Studio Team System, TFS, Team Services, and probably a few I can't remember).
