I'm a bit baffled by this comment, so much so that I find it difficult to believe we've read the same article. I don't see any indication in the article that the author ever submitted any work to SciAm, let alone that he's sore about not being published. None of the examples he cites have anything to do with climate denialism, nor is he defending any pseudo-scientific conspiracy theories. How is any of this responding to the article you're commenting on?