I share the perception that HN has an exceptionally rational group of participants, which is why I feel welcome here to post links to websites that promote rationality. But perhaps you and I read different threads. I post some of those links to websites promoting rationality precisely because I still see plenty of irrational discussion here, especially on issues in which the hook to believe irrational ideas is a belief on the part of the reader that he is smarter than average people. Smart people can readily fall prey to irrational beliefs if those believes appeal to pride in being intelligent.