"Assume good faith. This is so easier said than done ;/ But for real, assume good faith. When someone asks a question and you think they are trolling, it’s entirely possible they are not. (Maybe they are 15 years old, or their English is imperfect, or they have an impairment of some kind.) Even if they are trolling: there will always be onlookers who don’t know it, and who, whatever the provocation, will recoil if you are curt or unkind. Trolling also gives you an opportunity to equip onlookers with reasonable arguments that they can go on to use themselves."