[dang]

Interpretations differ, of course. I'd say any internet comment of the form "Please $Person. For the love of god stop trying to do $bad-thing" is clearly over that line, and snarky to boot.

I know "personal attack" sounds pretty strong, but the closer one is to being the target of such an attack, the more it feels like that—and there's absolutely no need to make a point that way.