>most will barely see each other, let alone interact on such a politically skewed site as HN
Or whoever is less represented (local to a given site/subsite) will just shut up because they don't want to fight a 10:1 losing battle with people who can't be convinced to see their side of things (subreddits are a good example).
There's also probably a bunch of people from rural areas in your downtown office who think you're crazy. The foreigners probably think the same thing. Neither group will tell you about it though. It's just not worth saying anything in those settings.