Any of my pre-2010 names. Like "Lerajie" which was some pagan/satanist figure.
"Kindevil, AngrySock, xXxFearfulSockxXx" were all some of my Maple Story names which make me shudder now.
I went by "Your Mom" Back on UT2004... the creativeness behind that...
I'm very picky on names, but after years I've found McDreary to be my name. Such as McDreary Pantaloons, McDreary The Hapless Hamster, or CaptainMcDreary.