Once again, can I repeat myself and confirm that your genuine christian name and surname are required when you register. Mickey Mouse is about as hilarious the 15th time as the member I've just locked "Ivor Biggun". Side splitting to children and anyone who hasn't heard the name 1000 times in their life so far.
Experience suggests that those who try to hide their identity are often doing it for a reason, and it is nearly always because they plan to cause trouble or mischief.
Even if there is no ulterior motive, you still need to give your real name, and perhaps get a sense of humour transplant.