What the comment is remarking on is why so many adults let obvious trolling affect their mental state so deeply. Independently of judging the troll for his beha

What the comment is remarking on is why so many adults let obvious trolling affect their mental state so deeply. Independently of judging the troll for his behavior, it's reasonable to wonder at people's fragility, particularly in the face of such light trolling. This is also why the specific form of speech (tweets) are relevant. Letting your guard down in front of friends/family/colleagues is completely normal, and people would naturally be more vulnerable to inflammatory comments in this context. But Twitter is not any of those contexts: there are a functionally infinite amount of people saying every manner of dumb or otherwise inflammatory things, which means the only leverage you have is over your own reactions. It's just such a self-own: "I'm going to let my mental health be temporarily controlled by any of the millions of people choosing to be cheeky or trollish at any given moment". I share GP's bafflement.