Also the way it works, for some reason it decides 2-3 people are my besties (they are not) and just shows me what they post, ignoring what everyone else is posting, so it's still useless.
Who doesn't know it exists? You know it exists. More likely nobody cares to use it because they don't really get much from their acquaintances' cat photos, in much the same way we were unable to come up with anything you want to share with your acquaintances. It turns out that people soon realize that the hundreds of random people they accumulated as "friends" over the years don't actually matter in their life. Those that do matter are already engaged using messaging services (SMS, iMessage, Messenger, etc.). Social media is alive and well, but it moved to places where you can actually be social, away from the "say and spray" venues like Facebook.
Also, you can choose to filter that feed by "Favorites". Did you mistakenly end up in that mode?
Also the way it works, for some reason it decides 2-3 people are my besties (they are not) and just shows me what they post, ignoring what everyone else is posting, so it's still useless.