I bet you'd love words such as "laggy" or "bad" blocked, eh?
Search function is your friend:
Well that quote's not entirely accurate, I don't think it is in there by default... :S
And those example would only stop him from seeing them, not the rest of the server.
If it's not there and you want to add it, type "cl_blockedwords" in the console, then condump words.txt, go to your paintball2/pball directory, and copy the lists of words out, and then you can just add to or edit the default list, and put it in config.cfg