Presumably you mean on this thread. How about an example from a recent year? SciForums is rather lax about enforcing the rules against personal insults because it's an impossible standard to maintain in this crowd. I generally try to avoid insulting the people who post on my own subforum, but I have my weak moments, as most people do. As for insulting political systems, religious hokum, crackpottery, unscientific assertions, proud ignorance, etc., those are fair game.