If it makes you feel any better, the information Google shares me with (the business owner) via Google Analytics is relatively little. Not even IP address. It's very hard to personally identify you, even though I can follow you individual (sort of) actions on my site. The bigger issue remains that Google is gathering all this information. While it may not be feasible for pornhub to store 3m terabyes of footprints, it is much more feasible for Google to do so. Plus algorithms and stuff.

This, coupled with whatever information they are low key tracking from Google Fonts and other hosted libraries like jquery, and their new web hosting and computing services, they have terrifying access to billions of websites. I try not to think about that fact. I mean. What percentage of sites today have a Google Analytics, Google Font, or Google Hosted Library? Even if you take out GA, 13 out of the 18 sites I've built in the last 12 months use one of those services. The other 5 don't only because they live on Android tablets and so everything is packaged. Why would Google create and host a fuckton of free fonts and libraries? I don't know, but I seriously doubt its out of the kindness of their heart.