He said it, but I was thinking the same. Why exclusive? Up until very recently I was at a company that was going through the hiring process, and the people tasked with administering the entrance exams were positively dripping with disrespect for all applicants that came through the doors.
They joked about hazing them and returned from virtually all sessions with words like "moron", "idiot" and "numbnuts" on their lips. Prases like "how could he ever think he was good enough to work here... or anywhere?" weren't uncommon.
Regardless of any other aspects of an interviewee's performance on a series of arbitrary test questions (which we all know often don't measure what the administrators think they measuring), all interviewees deserve respect.
I'm not saying the original poster had this in mind in any way, but bad attitude in hiring is pervasive among developers.
I'll admit my reaction on reading it was probably a bit knee-jerk. When I see the hints of "we only hire the best" in my head I translate that into silly semi subtle hazing rituals that ignore the person and rely on arbitrary measures rather than examining the quality of the person themselves.
Think why PG always says 'we invest more in the people than the product'.
Anyways, no harm done. An HN community JobBoard is (IMO) a pretty good idea. I don't think the YC one is really worth looking at, but one that serves the wider community might be good.