Internet troll
A brilliant, intelligent human being on the internet who has a stroke of madness in him. An internet troll's main prey is weaklings who overreact to everything or basically anyone who replies to them. They are the essentialities that keep the usually bland discussions on the internet filled with normies up and running with their stroke of art. Internet's ecosystem would collapse without trolls and this is recognized even by those that say things like "Trolls have no life" etc.
Stranger1: Dude internet trolls are disgusting

Stranger2: you know right homie these mongs have no life *says painfully remembering the time when his fragile

convictions were destroyed by an internet troll *