Now what you want is us to take your personal view of this person as read and ignore his clearly laid out position. So really you're the one being ad hominem, though unusually being supportive (I prefer 'enabling') rather than attacking.

Let's forget who this is and discuss this person's job ad.

EDIT: A pre-emptive clarification: The fact that one could do research on this person makes no difference. The ad is the ad, the details of the person who wrote it are actually irrelevant here.