The only reason the second speaker would say "When I see xyz on the floor" is because she has seen it before and that feeling happens every time. It's not as explicit as "you always", but it still implies a recurring and reliable event. Disgust is a societal trend at the moment that has started at 2015-2016 and will end in 2028. There is a deeper trend in the culture that will pass. But more importantly than that some people are genuinely more likely to have higher disgust sensitivity. It's a measurable trait. I am curious that the social trend comes to you as a priority in "it's disgusting", that's not a perspective I would see.
>making arguments from omniscience, like "you always", or "you are a ___ person" etc) is more likely to provoke an aggressive reaction
I agree "you always" is bad. You are burying the point by saying observations about feelings are facts. It could very well be true from the first speaker's observations Felix always does leave his socks out. I don't think 'always' and 'never' are useful categories because it gives the listener no place to go. They are totalitarian and nihilistic categories.
> it's generally pointless to expect others to behave in a certain "right" way that you can reasonably suspect they might not, and then get annoyed when they indeed don't.
I mean that's all well in good in a normal social atmosphere, but you certainly demand people to behave well when you are in a rough neighbourhood and get upset when they do not. You lock your door every night and get pissed off when thugs and criminals to break in, despite the fact it's reasonable to expect that was going to happen in a rough neighborhood.
>* It is percieved as an objective standard against which to judge all communication, rather than a guide for one's own actions.
I think the name is riffing off a political idea (unfortunately) that sought to make small infractions in social exchange and language a political tool for change. For better or worse one could draw the parallel between that political idea and this book.