trolls fed on hate and drama and engagement. Instead she’d simply take away their platform.
Clever, exactly the right thing to do, works irl too, you don’t react, or you react as though nothings wrong, they just look a little lost and a lot silly and will generally leave &/or stop, the exception is a drunk bully, they will feel insulted and react badly, but no matter what you’d said or done, that was a fait accompli no matter what, irl, walk away.

