It’s an interesting angle, forcing advertising companies and trackers in general to pay for or limit what they collect, but how would one enforce that, particularly if the company is offshore, or discerning and validating which participants consented vs. which didn’t. Privacy is a pinnacle state, and I see it as naturally unstable. Privacy must be actively maintained. That said, I recognise people freely give it up to obtain something else (transactions, convenience, information, experience, etc.), and do so in thoughtless ways. Here’s the special thing I particularly like about bitcoin: #bitcoin is the world-changing technology that doesn’t require giving up privacy for convenience. So let’s keep supporting and building privacy preserving tools for people so they can access bitcoin (and digital space in general) with privacy built in, in addition to fighting on other fronts as you describe (clamping down on advertising and tracking.)

I think it would be the best way to put companies which do not comply on a list. And every commercial relation with these companies would be illegal as compices. And ensuring that people actively comply could be easily verifyed in that you have to opt in to every collection of data actively. So that debault behaviour is illegal to collect anything indefnitly.