This is fake, duh.
Then how did they back-date it on the SKS keyserver?
By hacking it? I've never even heard of the site. Who knows how secure it is. The email address "
mtn_sssh@hotmail.com" doesn't show up anywhere else on the web. Supposedly the Dorian S. Nakamoto sig was added in 2008, a few months before the genesis block was authored.
IMO this is b.s. How often did Dorian use S as his middle initial before this article came out? His full name is "Dorian Prentice Satoshi Nakamoto" - He'd likely use Dorian P. S. Nakamoto if he wanted to use include middle initials. It's only been after the story broke that people have been refering to to him as "Dorian S. Nakamoto", presumably to remind people that his name includes "Satoshi Nakamoto"
Seems really unlikely to me.