If I was Luna I'd have SO much fun with this place. I'd pick a target to mess with, someone a bit paranoid who edits a lot, and start changing little things about their posts that only they would notice. I'd read their private messages and interact with them to get a full picture, then start logging into their account when they were offline and start chatting to people, spilling their secrets along with other untrue stuff. I'd encourage talk about how weird that person had got. Eventually it would culminate in the creation of several puppets in that persons exact writing style, sharing things the victim had only told privately. At which point I'd contact them and ask if everything was okay, because there are so many accounts coming from their ip address....
Or else I'd just switch everyones names and avatars around. The possibilities are endless.