I've had some disillusionment with HN, having been on it for 6-7 years. The dialog is mostly cordial and respectful but precisely because of that I'd come to put a lot of faith into the knowledge of the commenters. But I realized a lot of people here talk about things they have only superficial knowledge about (me included, though I've been trying to curb this behaviour) and as a result there is a lot of quackery about, well formulated, respectful quackery but quackery nonetheless. So I try to check the credentials of people when they include them in their profiles before putting too much faith into what they say.

Now I'm not trying to disavow HN, it's a really cool place and there are a lot of knowledgable people here with lifetimes of experience in complex subjects but there are also a lot of technical topics where the discourse is clearly inferior to reddit, twitter or even discord.