If a user was looking at their GitHub or Bitbucket repository in SourceTree we need to be able to support a link to their repository through SourceTree somewhere. This could only be supported for repositories where we know the URL format meets a certain specification, however, and with there being so many hosting providers we couldn't possibly support all of them. Probably just the major ones, i.e. GH, BB, Stash, Kiln, maybe even Google's project hosting.