The &quot;its on the web argument&quot; has a technical backing to it. Google own&#x27;s their own servers, and understands what their own hardware and software is doing. Collecting metrics on all that makes sense.<p>It is when you change it to an individual level that it becomes problematic. Instead of talking about what is happening with a product across all users, you are now talking about what a specific person is doing. And that is why tracking at the OS level is more problematic than at a web server level - by definition, my OS is personal usage.