you're like 12 hours and 12 threads late.
anyway, not many believe him because he only gave the detailed proof to Gavin Andresen and Jon Matonis in secret (they had to sign NDA before craig gave them the "proof").
That's what's so bizarre about CW's behavior throughout the whole thing, why the secrecy and why only to a select few? CW's public proof was less than underwhelming. So, I must believe he's NOT SN.