Actually, it wasn't *really* about vanity, but about the thing in parentheses -- having some way of identifying different replies to the same node (if you get the list of replies in a search,the name isn't there -- if it were, then maybe my reason for wanting this would go away).
Often a discussion will trail off into separate threads. I do think it would be nice if when that happened, monks happened to change the titles, but I know that for me it's an afterthought (at best).
Philosophy can be made out of anything. Or less -- Jerry A. Fodor