Heck, as a refuge from the political (2000) and religion wars, I'm on my third screenname. First time JR changed it for me, so I kept my original sign-in date. Second time, I wasn't sure I'd come back, so I cancelled the other account.
I just thought the dwarf-name I got from the Middle-Earth name generator was "clever." And that was before I ended up in The Hobbit Hole.
I've been around since 1999 (as a lurker, then a poster in 2000), so my "member since" date is misleading.
Don't ya hate those people that judge your right to an opinion by how long you've been a member?
I started lurking at about the time my brother joined, which would have been right before the 2000 elections, I think. So about a year's worth.