The claim is that the proof is unfixable. Proofs are either right or wrong. Good academics are supposed to checks proofs of their colleagues. There is no claim as to the merit of contributions made by Deolalikar. So, why exactly do these academics infuriate you?
I'm quite clear if you read more than one sentence.
It's the way this guy responded to a comment of a blog about the paper. It just seems like a bad place to post a real unfixable flaw to the paper. Assuming the commenter is right (also possibly a bad assumption) why not put some effort into your response that will be read by every computer science and math person you'll ever work with in the future. For instance how does one respond, follow up, contact this guy? I have to go google him wtf. It's the equivalent to nitpicking. In the end someone else will have to pick up the pieces of what he said and analyze it and rewrite it and repost it. So to me he seems like the guy from QA that no one wants to work with - a bad team player.