Isn't Wei Dai more likely? Dai wrote the original paper on b-money, Satoshi's coding style is remarkably similar to Dai's, and bitcoin makes extensive use of Dai's Crypto++ library. Dai doesn't like attention.
Wei Dai said that Satoshi independently thought of and invent bitcoin without reading his b-money article until after the fact. At least that's what I remember
So either Wei Dai isn't Satoshi, or he doesn't want to admit it. That doesn't help because we already knew that whoever is Satoshi doesn't want to admit it.
There is one reason: If you think bitcoin is some kind of pyramid like scam he is going to make a lot of money from it. As the creator he was able to accumulate many bitcoins while mining was still easy.
"'I think he didn’t get my sense of humour there – maybe it was a little dry for him,' Clear says. Above all, though, he says, 'I have never been deeply interested in economics.'"
Which was discussed in http://news.ycombinator.com/item?id=3068991