HN is where I follow the tech news. For discussions, if we take civility as politeness and elaboration of one's points, HN is quite good. But if we take it as convivance and proper productive discussion of different, potentially opposite ideas, HN is not all that good. Here there are some certain and strong biases and dogmas, and the moderation is oligarchic. I've learnt to not post on political stuff and philosophical questions about tech, as all you get is downvotes, flags, thread-detaching and whatnot. I believe any politics post is off-topic here, and for philosophical questions on tech, if the tech is liked, sceptics are lapidated.