Another thing that raised my suspicions a little while back is that basically all the accounts changed their signatures immediately when it was edited/ updated by the bounty manager. What I mean here is that probably some of you remember their "last chance to buy", "hurry up and buy now" signatures. For all the accounts in the signature campaign, their signatures were edited almost immediately after the changes were released by the manager. Meanwhile I'm having trouble getting people to change their signatures weeks after I made an edited and told people to updated it.