I think that when people are angry, they are more open to suggestion if you do it right. So this is a way to make people more receptive to buying a particular p

I think that when people are angry, they are more open to suggestion if you do it right. So this is a way to make people more receptive to buying a particular product or subscription, or to supporting a political cause, etc., if you don't make them angry about something first and do nothing else different, you get less conversions. And of all the different ways to improve in this kind of metric, the make-people-angry method one is relatively easy and requires relatively less competence.