Twitter isn't just uninformed sheep though. There is money to be had from uninformed sheep.
Lots of people have an agenda with stuff to sell (drugs, trans awareness training, that kind of thing). And of course people in whose interests it is to have a pool of children who never get to grow up. It is a marketplace.
And to do that they need to fire up the stupid in order to further both agendas. So you get the situation where someone will deliberately engineer a disagreement with Graham Linehan for example and then use that exposure to try to sell drugs to children.
Capitalism, unsavoury characters and people looking for a solution to unhappiness. This is what you get.