@gamingonlinux I think the base pull is the fact that people are reacting to things in a manner the viewers find relatable, or they appreciate the passion the reactor has for the topic. That's what I'd say is the original pull.

People got addicted, looked for more extreme reactions, which fuelled a demand for that type of content.

Since reaction-based content is trying to be extreme as possible and give you a dopamine hit, people fake their reaction or strongly exaggerate it to get more views.