Hahaha. I rather see a hot woman than someone tortured. Maybe I'm too Dutch...

Good call tho. Resumee, the sharing of data requires ACL on both input as well as output layer. This can be based on tagging. Eventually, people are going to use a feature like this for bad stuff; you see that with spam on e-mail, deep linking goatse.cx with UBB, etc. And simply banning someone doesn't work well, so we tend to create pattern regexps or block everyone by default.

Btw, I was also thinking about 'friends of friends', 'forwarding'. This can be very useful for networking in some specific concepts mentioned. At least #2.