I think the issue is optimization. As these sites have grown more efficient at gaining and exploiting (like a natural resource) users for money, they’ve optimized away mechanisms people used to form community and such. Moving to a feed of recommendations instead of a feed of people you follow is an easy example, but there must be a thousand little examples like that.
Fundamentally, if the goal is to make money, then that’s what will be optimized for, and in this case that goal appears to be in conflict with the formation and maintenance of community. It was just a matter of time.
I was thinking about this the other night - everything is more fun until it becomes professionalised too much. In this case, professionalisation is synonymous with optimisation for engagement.
Motorsports, video games, chatting online, working in a warehouse - all things that are loads more fun to do when someone isn't seeking to eke out more and more marginal gains.
Yeah, I see this all over. Every hobby becomes a question of how to get better at it, not of how to enjoy it more. Even if you enjoy your craft and growing your skills, the internet presents you with infinitely many well-trodden paths, completely robbing you of any sense of ownership. Instead of being here and now, possessing agency in a particular moment, you're just a dot in the bottom-left quadrant of some enormous scatter graph. It's the total perspective vortex.
Fundamentally, if the goal is to make money, then that’s what will be optimized for, and in this case that goal appears to be in conflict with the formation and maintenance of community. It was just a matter of time.