The complete lack of any standard for evidence here, so long as it confirms preconceived notions, has been stupefying. People trotting out his high pay as proof of competence, when in any other context such an argument would be considered so stupid that it's beyond need of retort. His flimsy and dubious claims about being able to expose every secret of the entire intelligence community sound so unbelievable that no competent engineer could accept them. And the slides themselves -- for fuck's sake they say, at a maximum, almost nothing actionable. Do we even know if those were created by the NSA, or by Booz contractors?
A sober, rational look at his claims would have to yield the conclusion that he's confused about what he thinks he knows. He certainly sounds like it.