What does your username mean?

[Paulbot]

Paulbot: I still remember when you went by the handle of "Rhinox." What made you decide to change it to "Paulbot"?

I used Paulbot first online, but Rhinox at first on the OTCA boards. I can't remember why I changed it to Paulbot except it was on one of the board moves and I think it was in part wanting to people refer to me by my real name but not really sure