Would it be dishonest to read it with the sole intention of debunking it ?
Again, I don't think I'd ever use the word "dishonest". To me, it's just the wrong connotation. Possibly "unfair" fits in some contexts, and "mistaken" in others.
Even considering he has made a great career in genetics, has believed in the theory of evolution for the majority of his career and just recently realized that YEC was true ?
This would immediately make me doubt anything he had to say that touched on the fact that he had recently become a YEC - so anything related to science I would assume he is completely wrong as a default position, and only accept once receiving confirmation from an alternativge source.
His particular case is interesting, since he fits nowhere in the ''either ignorant, stupid or insane'' false dichotomy.
I disagree - in all seriousness, it means he fits all three to greater and lesser degrees.