I was thinking more of offering reasons for downvotes due to the apparent increase in tribalism and what not, although I didn't exactly use the best examples.
People occasionally suggest this but in my view it's wishful thinking. It would lead to a lot of bickering about reasons for downvoting, and we don't need more meta noise here.
But then, there's a lot of bickering about other things that could perhaps be addressed to some degree by this approach.
One idea I was thinking was to just occasionally run some threads in this mode, and see if it has an effect on culture & thinking styles (predudgement, mind reading, baseless assertions of fact, etc)
I don't think it can be handled well. The Tildes implementation is done by arguably the only (that said, former-)administrator on reddit.com who can be called "universally-loved"; it wasn't done by an amateur, and it seemed to have a lot of thought put into it.
Perhaps you are right, but that is an epistemic question. Perhaps people really can never get along ever again, and we should just spare the effort and let the tides of fate carry us where they may. After all, it's not our responsibility here at HN, is it. We have no responsibilities at all, other than adhering to the HN Guidelines, and even that is little more than a suggestion.
I was thinking more of offering reasons for downvotes due to the apparent increase in tribalism and what not, although I didn't exactly use the best examples.