I'd like to think we would all--cperciva included--welcome specific criticisms or errors, but by claiming they exist without naming them, you're asking us to take your word over his. Your score reflects the fact that you haven't earned that.
I very much respect Colin and fully expect him to kick my ass in arguments, but, in particular, I find a good portion of his advice does not square with my professional experience; in other words: he's saying things that lay developers have already heard, and, empirically, lay developers produce very bad crypto.
Even that is more than required by the fundamental message I'd hoped to convey; which is "making something and sharing it can be useful; giving non-specific criticisms from a noncommitted, unassailable position is not useful." Reputation is simply bayesian evidence with which one can weight an otherwise-unsupported claim.