Mine is on and I get one every few days. Deleting them unread is not a problem for me (yet).
I think what Ivan was getting at was not you making user info available, but, well, "forwarding" adverts to us. That way our info stays private, but you still get more advertising dollars coming in. For my own part, in my emailer I have "download HTML pictures" unchecked, so all I need to see is a "broken picture box" and I know It's spam. ;-)
