[apitman]

My point is you could for example choose not to use very much (or any) extra upload bandwidth without getting user consent first.

[bawolff]

That's like saying you can choose not to run a website. Like yes, you certainly could choose to do that, but not if you're planning to run a p2p based streaming website.

[apitman]

It doesn't have to be p2p based. That's unlikely to work well in practice. But it could be p2p augmented opportunistically.