I can't believe I never saw this post. Anyway, here is my story.
When I was growing up, there was a local HS football player that was in the paper every week! Jimmer Bundy. Since my name is Jim, my brother would call me Jimmy Bundy when we were playing football in the neighborhood. After a few months it was shortened to Bundy.
When I opened my first internet account, I was able to grab bundy. When I switched providers, I couldn't get bundy, so I added 71, my year of birth. And now I'm bundy71.
Although it is not an official trail name, I like it.
Now I do have another name in Boy Scouts, Mr. Manny. But that's another story for another thread.
Scout Master Troop 303, Carneys Point, NJ