Not really a solution. It works for repeat visits to sites users visit often, it doesn't really work at scale. Users want sane defaults; most of them will never

Not really a solution. It works for repeat visits to sites users visit often, it doesn't really work at scale. Users want sane defaults; most of them will never change them. A world where sites are by default as malicious as users allow them to be is not a world where the internet is a friendly and powerful resource for everyone.