This is something that I consistently see that people still haven't gotten used to with Lemmy and other federated sites. People often complain about what they see on their feed or sometimes attack an OP for reposting. I assume people just aren't thinking about it since we're all still used to Reddit and using a centralized platform where everyone can see the same stuff. But with Lemmy, it seems that people forget that their feed will be completely different, based on which instance they are in.