> Once there is ANY value exchanged There's always value exchanged--"If you're not paying for the product, you are the product".[1] For ads we've established t

> Once there is ANY value exchanged There's always value exchanged--"If you're not paying for the product, you are the product".[1] For ads we've established the fiction that everybody knowingly understands and accepts this quid pro quo. For proof of work we'd settle on a similar fiction, though perhaps browsers could add a little graphic showing CPU consumption. [1] This is true even for personal blogs, albeit the monetary element is much more remote.