Slightly unrelated to OP's question... but something I just thought of, how would trying to reduce one's footprint impact the algorithm? i.e. would a lot of removals of likes invoke Facebook to suggest radically new content different than the thing which was removed? Or would it continue to suggest similar content?

For example, if someone unliked and removed every post and/or action that had to do with goats. Would they still get suggested content about goats or animals in the same family; would they get more animal-based suggestions than someone who'd never liked goat content? Or would those kinds of suggestions drop off entirely and change to common trends?

I have not used Facebook in a long time, so I'm curious if anyone has insight into the behavior.