> If a user misunderstands a feature and doesn't know why they don't see their friend in their newsfeed anymore, I don't want to be responsible for that.

Oh that's a gem. It's so rare in the field to see developers thinking in terms of "what if my code does something the user doesn't expect?" and putting into practice the principle of least surprise. So much software seems to want to blame the user for doing it wrong, it's good to see a different approach.