And also Zack and Said rail against this and overtly and publicly call people cowards when they use it, somewhere-between-insinuating-and-explicitly-claiming (depending on the day) that this is strong evidence that the person using it is wrong and fears them/their arguments/isn’t adequate to the task. Other hypotheses (such as “engaging with you is powerfully net negative and often produces no value at high cost”) seem not to be considered at all.
It’s rather disingenuous of Zack to … it’s not quite motte-and-bailey, but it’s something … blink innocently and say “well you can just [costlessly] ban people one-on-one? [Please ignore how we will try very hard to make this very costly.]”
Already written up here: https://www.lesswrong.com/posts/JcgtKunqmELefxksx/killing-socrates