There are a lot of things people are greatly offended by on a personal level, even moreso than they are offended by pedophilia. Who is going to draw up the list of things one cannot say on their user page due to it being too blatantly insensitive? It's been suggested in the past that saying "I'm a neo-Nazi" ought to be a bannable offense. Does that complete the list? Neo-Nazis and pedophiles out; everybody else ok? Well, I suppose "I support suicide bombings" is probably out too. Is the ArbCom going to be in charge of making these decisions?
We had a user once (User:The Fascist Chicken) who was, in fact, an avowed fascist. Maybe he should have been banned for that, because, obviously, he was implying "I murder Jews".