|Syntactic Confectionery Delight
I don't do it for vanity. I do it because it was pointed out to me why it was a useful thing to do by kudra. In fact she used to have a link on her home page to Suggestion for post-naming convention and an explanation about why her posts look weird.
I think having it done automatically is an excellent idea.
In reply to Re (tilly) 1 (not vanity): Automatically add name to replies