Back in the half chan days, FBIAnon said that Corsi was the person who knew most of the big picture. Not that he had put together enough to realize what was happening, just that he was the closest, IIRC.
I'm going with Corsi was kind of the "authority" back in the day and he tried to use that reputation to cash in on the Q message. He fucked up. Q wanted anons to build the message.