Sort order of movie lists on users' profiles

When I click on a user's movie list from their profile, the default sort order is "Your Rating - Desc" which I take to mean is supposed to display all of the movies that we've both rated, starting with the ones that *I've* rated 5 stars and descending from there. Yet I see movies that I've neither rated nor marked Watched or Want To Watch. Is this a bug or am I misinterpreting what the sort order is supposed to do?

It should be renamed to [username]'s rating desc.