XCode find and replace caused non-throw of certain very important exceptions. DB is filled with traversed private users that we do not want. Going to use SQL admin to drop all. Good news is it spawned the idea of platform specific attributes, aka 'NATURALLY_DISCOVERED|PRIVATE' we should keep naturally discovered private users around, because all we have to do is follow them in the future to re-characterize. Traversed privates are not worth the effort.