What's in a username

I've used the same user name since I returned home from Japan in Dec. 2002. It's my middle name backwards and has always been easy to remember for me. Also, I have never seen it in any form anywhere else. The neat thing about that is that now whenever I type it into google, it spits out most of the comments I have made on various forums under that user name. Pretty neat, huh. I suppose it would work with any username, but it depends on your uniqueness on what's going to come back to you.