IMO, resources like the Megathread create a false sense of security here. People read something on there and think downloading anything from sites on the megathread is absolutely safe. Just like any admin of a torrent site can´t catch anything bad before it can cause any damage, the authors of the megathred also can´t be 100% aware of each and every upload on every one of the sites featured there.
Just use your brains guys. We´re talking about piracy here after all!