@Documentally I think the thing is, low-population social networks tend to die out. The social networks which really engage people over time are those where there's constant activity, you can always go in for that dopamine kick of content and recognition...
@abgd do they not mostly die out because monetisation is the goal and there are not enough people with money on the platform?
It's down to the users to create the stories and moments which feed into the shared experience.