I think it probably serves his interests pretty well to have his name plastered all over the Google results for "Satoshi Nakamoto" and vice versa.
Hell, right now he's the only person in any of the page title results for q=bitcoin.
He presumably doesn't care about scamming the inner circle of Bitcoin, but does care about building up the façade of a reputation in order to scam other people.
> except if there is another move in the works that we don't know yet
Exactly. He has promised to release more evidence, and for all we know, by this time next week there will be incontrovertible evidence that he is Satoshi beyond all reasonable doubt.
Maybe he's releasing the evidence in a trickle because he's loving the attention, and he has some PR team advising him this is the best way to get it. Maybe he's doing it because he doesn't give a f* and enjoys reading about how "he's not the real Satoshi" and then he says "here you go, it's me". Of course, maybe he's not the real Satoshi.
> 3. He probably would have gotten away with it if the signature itself wasn’t googlable by Redditors.
Did he think this wouldn't happen? He got the hash in some way, did he think nobody else would be able to find it?
He looks like a conman, but a clever one; this is very weak so far... except if there is another move in the works that we don't know yet.