Sadly this is illegal in EU. You have to offer both Free+ClassD and Free+ClassA versions otherwise its forced consent.
I have written more about this here https://news.ycombinator.com/item?id=16351892
I have written more about this here https://news.ycombinator.com/item?id=16351892
Maybe this is how the whole web-based fee structure should have been setup in the first place but it's not the current deal we have in place. How difficult will it be to shift an entire industry (and consumer mindset) to a vastly different fee structure?
Since they do such a terrible job of it anyway I can't imagine it being less profitable.
And then again, maybe actually paying for something like facebook is the right way to go.