I think opt-in algorithmic/viral design would be nice. Sometimes I like having a neural network tell me what posts I might be interested in.

A decade ago I was on rss feeds all the way. But over time I followed so many people it became very hard to get through all the content in a day. Having an algo help push stuff tk the top was a value add for me. Yes advertisers distort this stuff which is why it should be opt in and should have extensive levers for the user to control.