I'm also 20 and I've been on HN for a while now, I believe the reason I stayed here but at no other news site is that everyone tries to give an intelligent point of view, and the people who don't often get modded down. I've said things I was sure would get downmodded and ended up getting a couple of points for because I made a good but not necessarily popular point.

I've read so many comments here that I've completely disagreed with, but they always give a valid point or opinion.