Well this is another very tricky one, I’ll give you that. So many N-order effects.
I still disagree strongly with your characterization of “substance” in this context though. E.g. when another user sent this (ad-hominem) challenge:
> Why is it that everyone who pushes Ivermectin as a miracle cure for COVID is also a conspiracy aficionado?
I responded with a simple and dispassionate explanation, rather than taking offense. Is there no “substance” in my entirely coherent, well-argued, and non-emotional reply?
> Simple. You have defined the latter as some variation on the former.
Perhaps you could call out my "what a pair of years" top-level comment as that was not responding to any of the nasty attacks in this thread, or even dogpiling on the excellent arguments that other people are making. But those kinds of comments function to put me on the record here with a timestamp, so I can link to them later. There is a tiny bit of substance even in those.
It sounds like you might prefer that I disengage and flag all of the nasty posts (e.g. another person in this thread implied that I am a murderer) so "the bureaucracy" can fix this conversation? Sorry, you are a great moderation team, but I am not going to do that, because I don't believe it is a real solution to anything. You cannot fix this kind of conversation from the top down - Quis custodiet ipsos custodes?
Trying will just disenfranchise the out-group further and make the echo-chamber effect worse. If that means this topic cannot be on HN, so be it.