I call it the 'fuckwit handbrake turn' - when someone comes in with word-salad expecting you to bend the knee (because their word salad generally passes muster in limited echo-chamber communities) - they then have to about turn without losing face because they've hit someone who can actually debate. This usually involves more word salad followed by a rapid block for ego defence. It's incredibly frustrating and Medium should tweak the Block Button accordingly - very annoying.