Arg, don't want to bother either of them, can't imagine how much else they have to do already!
But we're not allowed to make a replacement account, so we're basically just stuck with whatever we chose originally? I don't have a 'good enough reason' other than I have a Username I'd much rather have, and I did confirm on the Members' list that no one else has it already. I was never quite satisfied with Lilaala, but couldn't think of anything better at the time I was signing up. If I'd realized it was going to be permanent I might have put considerably more thought into choosing it, and I'm pretty sure I would not have decided upon Lilaala.