Does this exist? Am I missing it?
Why I Unfollowed You on Instagram
Ian C Rogers
2.5K232

While it doesn’t quite cover all of your requirements, it seems like reddit might be pretty close. It still requires some initial setup on your part, but if you like skateboarding, punk rock, and motorcycles, then you just subscribe to those subreddits. Unfortunately, it doesn’t discover things about you and automatically adapt to your changing interest profile.