Px has a certain je ne sais qua - except that he sometimes gets more personal than krazen. Krazen is actually quite a polite poster from what I can tell (yes I know, somebody will put up a post demonstrating to the contrary no doubt). But the point is, is that he is usually that way. Whether he is a troll or not I doubt will ever be really known - in part, because of his style. He keeps things close to the vest.
I think it's a mixture. He believes some of the things he says quite a bit, but exaggerates it to get a rise out of liberals.
Check the Grimes thread, it's basically Krazen vs. Atlas.
Seems like all his posts were deleted...