I think this overcomplicates this. Based on your thought process github.com/nonexistinguser would throw 404, because well, whether or not a user exists is publi

I think this overcomplicates this. Based on your thought process github.com/nonexistinguser would throw 404, because well, whether or not a user exists is public information, but the same thing (a resource doesn't exist) github.com/username/nonexistantrepo would throw 403 so you have to check the url and make something conditionally if you are a client... Also it makes more sense and more simple to me that something I don't know about simply doesn't exists for me. :)