The "problem" with that solution is that users are very willing to click any button necessary to achieve their goal, and in any dialog that prompts to allow tracking in order to achieve something else, most people will click allow.

Personally I don't think this is a problem, and people should be allowed to make that choice. But most of HN seems to disagree with me there, and feels that users need to be protected from making choices that could allow them to be tracked