I'm the guy who wrote that post - My guess is the front page might block urls that have been posted before. This post finds its way to HN every 6-12 months as a fresh post.
Still, it's really nice that it still gets attention from the HN community, and even nicer that each time, the discussion is more productive and inquisitive.
Still, it's really nice that it still gets attention from the HN community, and even nicer that each time, the discussion is more productive and inquisitive.