My Gamertag (Mad Fisher) was thought up by my uncle as it was originally going to be a shared XBox Live account. The most sense out of it is that I am crazy (I have Tourettes), and my uncle likes fishing.
My username on the other hand, comes from the old days when I used to play Runescape. My nickname from many people was Sethy Boy, so I tried to use sethyboy in runescape. Unfortunately, sethyboy was taken and the suggestions were names like sethyboy92697 or sethyboy29573. I then noticed at the very bottom that sethyboy0 wasn't taken, and I thought that was reasonable
My Maplestory private server name is Perntarf. I originally was thinking of random names, and I came up with Poontar. Somehow, that name was stopped by the censor, so I came up with Perntarf instead.
I try not to have numbers in my name, as I don't really like them.