I think the major issue here is the responsible use of the Anonymous tag. Too many hateful, prejudicial, or otherwise ignorant comments are tossed out from behind that shield of "you can't see me" that is the anonymous internet, and this becomes the norm by which others come to judge such communities. I firmly believe that our state of being as a society indicates there must be a striation in the internet: one where we are who we are, and one where we can discuss counter-culture or taboo subjects without fear of reprisal. Ideally these would be the same place, but realistically they cannot be until our society becomes much more accepting of itself.
(Also, I've never commented on here, but HN is the Bee Knees.)