I am worthless, this is a given, but I would not have joined hubski under the proposed system. How would I? I hear tell of a great website elsewhere, click the link and see nothing, so I leave.
A use case you have not considered, probably because it doesn't matter: I scan hubski from my phone occasionally, but I don't have my login on my phone and I have no idea what my password is. So I will never be able to do that again.