BuddyPress.org

In a word? Yes! Doing so is really the purview of the plugin developer? I would have though it’s a simple check that a member is not equal to whatever the field is that marks someone as a spammer however and not having looked at the plugin it sounds as though a table is built up of follwers but that isn’t rechecked against possible changes to those members, essentially you add a member as a follower and remove a member as a follower but nothing happens in-between.