Before I started AH I tried to set up an online account with MS CFS2. I started out with basic airplane/WW2 names, but kept getting the message that the name was already in use.
Eventually, I tried a name based on a different pastime- Mountainman.
I've always been a frontier history, archaeology, primitive living buff. I tan deer hides with their brains, build and shoot flintlock rifles and muskets, camp in a tipi, participate in fur trade "re-enactments" called rendezvous, knap stone arrowheads from chert, flint, and obsidian, throw knives and tomahawks, etc...
When I came to AH, I just figured I'd use the same name, but it wouldn't fit so I shortened it.
MtnMan