I ditched my first online handle, and went to morose. I figured it was uncommon enough at the time that I wouldn't feel the need to fight for it. Then AOL boom and goth kiddy boom and it became a problem. So I found a more fitting word, etiolate and went with that. I figured noone would use it, and for the most part that is right, but once in awhile there won't be an 'etiolate' available and I have to use etoilet.
Iron Chef was my online gaming handle, especially Iron Chef Ascalon in Guild Wars. I used the handle for pvp only, so it wasn't always reserved. At some point someone else started using it and even using the Ascalon part. Not sure if they were posing on me for reputation or what, but I still get asked if I'm some dude who is not me, which is lame. Especially since I put the name on the map, made the name have reputation in the game and then someone takes a slab of it.