Chronological feeds tend to be gameable by growth hacking. Still better than a lot of things. One of the tricky things for me is feed aggregation for balancing

Chronological feeds tend to be gameable by growth hacking. Still better than a lot of things. One of the tricky things for me is feed aggregation for balancing subscriptions between people who post a lot and people who don't. It also might be interesting if video recommendations were curated feeds by the creator.