"Most people don’t follow these issues for a living and have a hard time distinguishing legitimate arguments from garbage. I don’t mean this patronizingly: I certainly would have trouble distinguishing valid arguments from nonsense in a technical field I didn’t study professionally. But that's why there’s a value in signaling that some arguments aren’t merely expressing a difference in values or interpretation, but are made by an unqualified hack peddling demonstrable nonsense. Being so mean is a labor of love, I confess, but also one with a purpose."