I generally think that. But letting dwell time/clicks/open-rates expand the recommender and then (bound to swipe) 'disinterested'/'show less like this' to cull has been pretty efficient. I used to feel dumped into simclusters and now I see a more specific subset of posts I prefer (while still casting what feels like a wide net).

I really liked when bsky introduced the 'show more/less' and then expanded it to custom feeds. But I'm afraid the recommender systems work better with more data. And I think the feed operator alone gets sent a limited set of interactions?

I'm not exactly sure how it would work in atproto but I could imagine an enriched 'graph-interactivity' where you can turn on and off which/how much signal/privacy you want.