What's the deal with your nickname? How did you get it? If your nickname is self-explanatory, then tell everyone when you first started using the internet, and what was the first thing that made you say "wow, this isn't just a place for freaks after all?" Was it a website? Was it an email from a long-lost friend? Go on, spill it.
I've had a variety of nicknames online, but all of them had numbers at the end because someone else had come up with the original first. Bastards. Thewittyname was the last on a long list of stupid names with no numbers. It's neither witty, nor much of a name, and that's probably why no one had taken it already.