Hacker News has a pretty strong history of being apolitical, and for good reasons. I don't see how stronger moderation of comments by the community is worse than encouraging political discussions. FWIW I'm strongly against the NSA stuff, but I understand that it starts to become a discussion similar to ones religious people hold rather than actual intellectual discussions about how to solve a problem or discover something. If I want to solve the problem with the NSA, I have to become politically active or donate to an organization like EFF so they can go do that for me, not have conversations online about them.