The vast majority of users on any platform are passive consumers, they are valuable only as long as they keep scrolling and viewing ads. The ultra tiny minority

The vast majority of users on any platform are passive consumers, they are valuable only as long as they keep scrolling and viewing ads. The ultra tiny minority of users that are valuable to the platform 24/7 are the ones that consistently submit links, generate original content or post comments that bring in a lot of the passive users. The high value users will only leave when they loose the ability to upload to, and interact with, their favorite communities.