> the question "which ones specifically are ok?" is generally answered by: the ones that have some intellectual interest that isn't just partisan, plus significant-enough new information so that the discussion doesn't automatically turn completely repetitive
But, as far as I can tell, this is what we're seeing. And also but, as you seem to imply, how can you tell? Honestly I don't have a good answer nor do I expect you to. I like to use HN as an escape from all that even though I'm completely guilty of engaging in the same politically driven nonsense I find so appalling and tiresome.
Maybe the only answer is that we have to constantly remind ourselves to act and respond in good faith, with honesty.