I would suggest choosing another name for your linkshell.
I'm sure SE wont be deleting any old character data as they will surely run a 'return to vana... erm.. Eorzea' campaign to encourage players to come back when they feel the game is much better. We still cant kick players from LS's which is why so many seem to 'die'. is it even possible to disband a LS at the moment?
Edited, Jan 6th 2011 7:44am by Metin
It is possible to disband.
I was a member of Tainted and with 90 members, having 20 active, the LS leader decides to create a new LS and disband the original one.