Hmm, I actively discourage them. Apart from information about myself best not make searchable by the rest of the internet, I tend to think that if I'm not prepared to put it out into the centre of the forum, then I probably shouldn't be writing it at all...
What I was actually going to write on this thread though, was that surely everyone liable to have a full inbox, is now going to have to periodically check it to see if they're 'at fault'... in which case they might as well check their inbox periodically?!