First of all, people, seriously. People who aren't Libertarians are familiar with the phrase "free lunch"
Suppose Dorian is the real Satoshi, and wants to direct attention away from himself. What will he do?
He'll post a message from a known Satoshi account, saying "I am not Dorian Nakamoto."
Think about that for a while
Suppose Dorian is not the real Satoshi. The real one wants to clear his name and posts from his account 'I am not Dorian Nakamoto.'
Think of that with your under the average IQ.
Leave the old man alone, he's in enough trouble as it is.
Point is, the post on the p2pfoundation.ning.com doesn't really prove or disprove anything. Except that the real Satoshi Nakamoto still exists and is aware of this story.