Facebook in the mid 2000s was pretty good. It was a chronological timeline of your friends’ posts along with a photo album. It was like LiveJournal but with a much better UI.
no algorithmic content driving the variable reward schedule in order to induce compulsive behavior, just content I've explicitly selected and a willingness to say "we've run out of content" instead of just filling the infinite feed with whatever
Anything without a feed backed by a recommender system.
Front Porch Forum is one example of a relatively good social network. It's made possible by the founders not aiming to become billionaires. This is another necessary property of basically anything good.
