I’m left, but I can listen to people that identify as right on HN and not roll my eyes, because they have good points as well.
If you pick a random person off the street (left/right), your chances aren’t nearly so good.
So? I have never seen instances where YC's organizational viewpoint controlled the overall discussion, and I think dang is probably the best moderator on the planet.
Sure, HN has a focus around the "tech startup ecosystem", and that may attract a certain type of viewpoint, but I've never seen that viewpoint pushed from an institutional perspective.
I suspect that because a huge portion of the HN crowd are educated IT workers / would-be founders, overall there's both a strong support for capitalism mixed with progressive social views. That doesn't really connect well with the political landscape in most of the western world and typically gets you labeled a centrist, regardless of how important those particular issues are to you.