In contrast to /asknew which is almost spam-free. Since /asknew was introduced about half a year ago (?) I have the feeling 'Ask HN' posts do reach more often the front page. This might back up your point because people seem to go to /asknew (and leaving an upvote/comment there) more often (less spammy experience).
It might be the luck of the draw but I see four pre-deaded comments in /asknew now vs five in /newest. It looks about the same, again, with the caveat it might just be a coincidence.
I'll also admit I'm an unrepentant, flaming hater of Ask HN, its parents, its parents' friends and the people who owe them money.
Can you explain to me what a "pre-deaded comments" is? I haven't heard of that term before.
Also, if you don't mind, I'd be interested to hear what you have to bring against the 'Ask HN' format :) (Edit: I don't expect a long paragraph, but maybe you could indicate a general direction)