Alas, you are so wrong. Just behave. End of.
Kaynight, how I chat with my friends while playing chess should be nobody's business. Behavior has nothing to do with it. I usually have very good sportsmanship, but I simply see a lot of drawbacks to letting an automated censorship system discern what "bad behavior" is. The best solution would be to just let players play and chat, and allow a human moderator decide if someone has crossed the line. It's the principle of the matter that bothers me- I'm all for good behavior.
We pay money to have certain privileges on this site, and freedom of speech should be included when you're forking out $5-$14/mo (depending on the plan you choose). Of course there should be limits to vulgarity, but "kicking" somebody from live chess using an automated "cursing detector" is downright ridiculous. What if you are playing against a close friend and just messing around, talking trash for the fun of it? At least allow enough breathing room for the opposing player to report the profanity if it really bothers them to that point. There are plenty of other chess sites out there (which I won't name for fear of being banished on grounds of treason) that don't go around policing language and what have you. It's too bad that those other sites aren't creating more competition with Chess.com in order to cause a bit more balance. Alas, this is all merely my opinion.