A couple years ago I built a web analytics tool that doesn’t use cookies (or any similar method) and doesn’t log IP addresses (or hash them). It simply logs impressions. I’m curious what this company uses for stats if they went so far out of their way to avoid cookies.
Guessing YT was thinking of a no cookies solution, and realized it was impractical. So they settled for promising to isolate the viewing data to avoid influencing ads and recommendations among ones usual YT activity and an embed.<p>Perhaps YT has convinced regulators the local storage and on-play cookie in this "enhanced privacy" domain are essential features and not sufficiently identifiable to violate GDPR.