This proposal collects far, far less data about about a user than any existing method. It doesn't add more entropy because any ad-tracking platform can (and doe

This proposal collects far, far less data about about a user than any existing method. It doesn't add more entropy because any ad-tracking platform can (and does) already track this exact information. By making it a standard that actually solves the needs of advertisers, the willingness to adopt it will increase because it's simpler. That said, I think this proposal falls short of solving current tracking problems.