I just block them. At least on this forum (since apparently no one has avatars?), I usually don't read who the post is by before reading it....so I'd end up starting to read a post then realize it's by one of "them", then I get suckered into reading it and wanting to reply. So instead, just block 'em and you won't be tempted (or as tempted) to read their post and/or respond. Unfortunately, you can still read their post if it's quoted by someone else and invariably end up reading the quoted section, but hey -- I never said it was perfect. Just don't feed the trolls.
EDIT: And before ya think I'm blocking people or suggesting others block them because they are anti-AP, that is not the case. These posters are simply trolls. There are people on WOV and BJTF that I disagree with, but I don't block them. There are also some who frequently post complete nonsense, whom I block, even though they are pro-AP. Although, it does seem the lack of logic makes the trolling and anti-AP go hand in hand, at least on this forum. When I say logic, I mean logic in general as well as game theory type logic (prisoner's dilemma, monty hall, etc.). Logic in general being when someone puts up a shit argument with no good and logical reasoning beyond the surface (IE: "martingale black on roulette because eventually it'll hit").