Suppose now, though, that somebody starts a thread on 4-ch about filesharing, providing Share hashes for copyrighted material. Legal authorities get to know about this and contact you, the site admin. They demand that you lay open the IP logs to them so that they can track down the creator of the thread. What do you do?
Also, I'd like to know a little bit more about the whole legal context of Australia which is obviously the one that applies to 4-ch. What goes and what not isn't neccessarily clear for us Americans & Europeans. So I'd be thankful for some kind of backup knowledge.