Back when I was young and angsty, I decided, for whatever ridiculous reason, that I wanted "Pure Evil" as a screen name. Obviously, that was already taken, but it wasn't in Portugese...or Italian....or something. So I used Puro Malvalgio, I think. Over the years, it got shortened, twisted, and strangled into Oscuro through some method that I don't remember.

It's now my SN on everything from E-mail to gaming, so I seem to have adopted it for the long term (No, I am not the Oscuro who Modded Oblivion however, just in case anyone here might think that)