Who's beaten this one?
This challenge is about using the Internet to perform research and enumeration.
I've maintained this pseudonym for about 20 years now. When I was younger, I took great pains to make sure my pseudo didn't get related to my real identity. Over time, this became less important to me and things began to co-mingle.
So... with a little bit of effort, you should be able to use Google and figure out: What's my full name?