Here is a variation on the theme - - a tactic used repeatedly by a few select posters: Skirt the "no personal attacks" rule by making a (sometimes) veiled but disparaging remark about a larger group of people. See the following exchange at posts 31 & 32 of this thread:

http://www.flyertalk.com/forum/showthread.php?t=373876

'You lost me on that one."

"Why is it that the far right always gets confused by simple facts?"

If it isn't an ad hominem or personal attack, then it most certainly is flame baiting.