[Crazy Jetty]

Mine is old. Dates back to 2000. Doesn't seem like it, but it's Beast Machines Jetstorm.

There used to be on AOL, a chatroom called Beast Wars RPG. Crazy Jetty was the last name I ever used there. The premise behind it, was after the maximals finally defeated Megatron and reclaimed Cybertron (Pre-second season), Jetstorm was out of a job.
However, there were all these emtpy vehicon drones laying around, and millions of bodiless sparks.
So, Jetstorm opened "Crazy Jetty's Casa o' Used Vehicons!"

And that's the screen name I've stayed with ever since.