Anything you in a public space, will be made social by someone eventually. If you (GP) don't like it then tough shit. That's a You Problem, not an Us Problem.

And you can make github repositories that others can see but not the rest of us, it just costs a little money. You can host a book club at your house too and not have to listen to other people snicker at your friends' commentary on the book at the coffee shop. But if they're gonna keep saying stupid shit in the middle of a Starbucks, then someone is going to butt in.

Making a PR is also in the public space, and if your PR is lazy spam, you deserve a less generous response than the one Hickey gave.