HN is the most intelligent and open minded online community of this size that I know online. I have deep respect for you guys and girls and your opinions are always enlightening and thought provoking. I really feel much smarter because I have access to all these very valid points of view that you are surfacing. But even this community suffers from this strange phenomena of "group think" which leads me to go into this…
Maybe HN should have an 'anonymous' feature for accounts above a certain karma that allows a post to be made with no username attached, and no effect on karma. Behind the scenes, admins can still issue bans for unacceptable comments but the opinion gets protected from the groupthink.