Developers who use popular language `Visual Basic` for their Github projects mustn't ever have any problems as they don't ever ask questions on Stack Overflow. Oh wait, it's tagged differently there, `vb6` and `vb.net`.
Yep the tagging needs to be worked on, julia get tagged as julia-lang on SO. And I am sure many of the languages ranking high on GH but very low on SO will have the same issue.