Yes, absolutely. He apparently goes to great lengths to "prove" that he is Satoshi, but when asked to sign a new message, answers "I’m not going to keep jumping through hoops."

Um, what? Signing a new message is a minuscule jump through a very large hoop, not something difficult or cumbersome or time consuming.

This fact alone is indefensible, smells of fake and should be enough to dismiss the claim.