The Google CDN serves its scripts from a cookie-less domain and with an aggressive far-future expires header. Best case, a given user may only need to make one

The Google CDN serves its scripts from a cookie-less domain and with an aggressive far-future expires header. Best case, a given user may only need to make one request to Google per year for a given script, and even when they do there aren't any tracking cookies to make that request worth much at all in terms of tracking. You're right that Analytics isn't great for privacy, but their AJAX Libraries CDN is configured in a diametrically opposite way.