I don't envy your plight. Perl monks is highly dependent on user input and closely tied with the open source movement. Free speech is an important right. However, you also have a user trying to abuse the freedom and flexibility of your site. I face these decisions everyday as a System Administrator. I would ask masturbator to chose a more apropriate name. While I think it is pretty funny, I don't think the majority of the people here would. I like the Chatterbox and I would hate to see it go away or be buried in profanity. Profanity doesn't bother me either, but that is not what the site is about and again it will probably bother other people. It sounds like masturbator has been a problem in the past. If you have already given him some warnings I would ban him. I would give the ignore right to everyone and the ban right to only the top two or three people - You, Merlyn, Brott, and chromatic. I don't think banning should be a one person decision. You could use the voting booth to ban people.

Keep up the great work with the site! I like the layout and the incredible level of interaction you can have and I would hate to see it go away.
Ergowolf Does code make a sound if no one is there to type it?