Hard to tell what to say here. It comes down to personal preferences. There's lots of forums out there where members start a "post a picture of yourself" thread - and they can be a lot of fun.
Now, this forum is already restricted to people who have Wonderland or Return To Wonderland (full version - not demo). However, that doesn't mean that someone can't take your posted picture and put it on another site. Or that - combined with other information about you - there isn't a possibility of identity theft.
But the same can also happen if you e-mail a picture or PM a picture. Chances are even lower, but they still exist.
Personally, I'm very cautious. I participate in a lot of things on the net, but I don't easily share any private information - as you folks might have noticed on this board.

On the other hand, many people have websites and blogs and whatnot with their pictures and lots of private information. I don't know what the incidence of identity theft is for bloggers (I don't blog).
I can't offer you any more secure way to share pictures, so you'll have to decide if you're ok with having a pic of you on the net - whether on this site, by e-mail, by PM, etc.
So that probably didn't help at all.
