Hacker news is every bit as full of misogynistic assholes as reddit/4chan, they all worship Paul Graham who basically has the same world view as Damore.
There are definitely some issues still on HN; I've had to argue with people here that think gay people don't deserve the right to get married and I've noticed people instantly downvoted into oblivion for mentioning that they're trans.
My guess is that it depends on whether you look on marriage as a religious custom or a legal custom. I can understand people not agreeing with it in the religious sense (as their special book says so).
Personally I say give everyone the same rights (i.e single people) and a large part of the problem would go away.
