I basically meant that even without that functionality, there is a possible use. With the distinction in tact you're right that it would be required.
Ah, yes. Personally I'd still call that an item just with a different visibility, but my terminology might be off.
As noted higher up, I have made a new, much smaller proposal that only takes the necessary parts from this one, and actually allows not having extern crate, and leaving all other visibility functionality as it is. I'd love your opinion on that one as well!