> one of the leading complaints being that it takes a lax approach to software licensing

I never understood this criticism. There's plenty of software I haven't bought a license for. I don't feel that just because somebody shares their code or archives it in public that I'm entitled to a free license.

That said, I've been approached on Github about licensing my code and I'm happy to grant one. For the most part, however, I just dump code to Github because it's a convenient way to backup and dealing with licenses just creates friction. I'd rather know that somebody out there explicitly wants the code before dealing with it.