Another factor: the old-fashioned legacy news mags are raring to sink their teeth into this story, and become relevent again (at least for a week.) This type of side-by-side forgery story is their forte. Think "Hitler Diaries" exposes. You can bet that the non-CBS news weeklies are working overtime as we type, to break this story open. And there is only one way it can break: forgery.
PS, somebody came up with a great "Sore-Loserman" type slogan:
I'm planning to do that boat thing in the next few years. :o)