I used to be a moderator on a 4chan-like website.<br>We reported that type of content all the time to domain registrars, web hosts, local police, FBI, etc, and it never got solved. When a link went down, several others links arised on the same few websites.<br>We eventually found out it was the FBI sharing that content as a trap to arrest people.(a.k.a. "honey pot").<br>We tried IP range bans, auto-ban bots, blocking links, blocking images, but it was never enough. Eventually we had to shut down.