The very largest ones also find that their prediction algorithms, which are inextricably core to their profit and control, work a whole lot better when they punish behaviour which the algorithm didn't predict.
Past a certain point, shaping people's behaviour is a lot easier than trying to predict what people would freely choose to do.
Consider this a friendly, local pub. Make yourself at home, bring your friends, have a good time! Meet new people, have a laugh, enjoy the ambience, and the Oxford commas.