I've raged a few times when I'm screwed out of a good fight by the game (puffy ack) or another player (there's nobody else in sector, just wait a moment and I'll fight you too!), but I don't express my anger through the keyboard causing a purse fight on 200. I did make a snippy remark the other day, didn't call anyone names, but apologized later.
The only thing I take seriously nowadays is the opportunity to fight, I don't fret over the fight itself, but when one's dangled on a string in front of me and whisked away 10 times I'll get frustrated.
Still a fun game though, I'd rather play it than anything else.