You can say "vagina", but you get suspended for doing so.
The whole fucking thing is a joke at the moment. The word count business more so than the cuss filter, I'd have said. The set up changed four months ago, and they still haven't done a thing to adjust any of the complaints people haved made about the set up. The only change I've noticed is you can now say "Dick". presumably they wouldn't be able to sell as many Nightwing comics if you couldn't.
Twats.
