I believe this was planned, or it could have been someone on this site who found a flaw in security and wanted to cause drama. My guess is the first one though.
Yes, that is how he would have had to do it, I just don't think it is probable. Maybe I'm wrong, I'm still new and you have debated with them way more than I have, but I'm still skeptical.
I don't buy that one person took the time to keep five accounts active while giving each account a different personality. Even if it was him and some friends, it's just too much effort for too little pay off.