What I see is a (clever) hack, and GitHub continuing to provide good tools to its users.

What I see is a solution for a problem that is self inflicted, meaning lumping contributors and generic internet users in the same workflow. In big projects, you have the core team, a handful of well known contributors, and everyone else.

I strongly prefer the git email model, where it’s often trivial to control the flow of changes proposal. GitHub does not have the same wealth of tools and versatility.