Well, scraping someone's follower-only posts is indeed a dubious thing. From one perspective, it is worth mentioning that "follower-only" posts are in fact not protected, they are broadcasted to everyone anyway, and could be made public by a pleroma mrf policy (like the one annihilation.social is using).
From other perspective it is a rather bad behavior. Anyway, stop assuming your posts here to be "protected", it is dumb and, honestly, dangerous.
You still can block people and instances if you don't like them for whatever reason, though.