Auction has been pulled. I am inclined to believe it was Bansky selling his own identity...and he probably had the highest bid also...sort of a mock on the the idea of the need to know the artist identity?
It very well might be real. I imagine as his profile has risen over the last few years it has become harder and harder to hide his identity. I think decades from now when the guy has retired it would be interesting to know more about the man behind the work. I find it shitty that some douchbag is going to make a ton of money for outing the guy.
Supposing this auction were real, and supposing Banksy was going to reveal himself to the winner . . . how, as the winner, would you really even know if you were being introduced to the real artist? Who's to say that Banksy wouldn't send in a ringer as a giant art prank?
In any event, the whole thing smacks of Banksy's off-the-wall humor and here we are yet again talking about him.