I think there are some who won't ever get it. I suppose if you think that a flippant two word comment made within seconds of the post going live is going to be received as genuine then you're beyond receiving intelligent discourse. I only get a few like that, and ignore, or warn, but I can imagine you see more than your fair share of them. Still a flag through the eye animation has to be a fairly coherent warning. If only they bothered to look.