It really looks like the functionality that my Dropship hack offered :-) Except that it's easier to trace, as the person sharing the file has to give explicit

It really looks like the functionality that my Dropship hack offered :-) Except that it's easier to trace, as the person sharing the file has to give explicit permission, instead of just giving some anonymous description of the file. I guess they can use that to punish "wrongdoers".