This is more or less the sentiment I have of HN, too. Basically it boils down to an echo chamber; the community selects what it wants to hear, and silences other voices.

Granted, HN seems to have a more pretentious selection criteria - less-mature-sounding comments are discouraged. But it seems to me that HN has much less tolerance for diversity of opinion.

But I read both HN and Reddit, as well as the comments and articles in many other places, because even though I may not agree with the attitudes or opinions, they are different perspectives all the same, and I think it's a fallacy to think that some perspectives can be of lower quality than others.