I work quite a lot on the online adult industry designing websites. When someone post pics that are not their own the people who own the pics politely ask them remove them. Most times people do. People by far, for the most part are good. However occasionally you get someone who is a complete worm about it and will not take the images down. Thats when much of the community gets together and 'pays a visit' to their site. If they have forums, a couple of thousand messages clogging up their system generally makes them see things more clearly. If that fails, a couple of thousand emails a day. If that fails then more drastic measures usually work. This all sounds perhaps a little over the top but it is effective. I have sympathy and respect for people that post the pics and take them down when asked. We all make mistakes. Unfortunately legal paths won't work so sometimes we need to take things into out own hands.