I am waiting for my copy to land in the mail before reading this.
You are correct, LRB is generally not easily fooled into writing puff pieces; O'Hagen is a very sharp writer (check out his masterly analysis of Assange who is much more capable of blowing smoke than Wright).
My prediction is that this will be looked upon more as a an essay about digital con men, and this is why M-K Willmers allowed it to be published.
FWIW, I say Neal Stephenson is Satoshi :)