You can likely still do analytics if you don't collect an identifier that persists through multiple sessions. That's a big hit for ad-tech, but plenty other use

You can likely still do analytics if you don't collect an identifier that persists through multiple sessions. That's a big hit for ad-tech, but plenty other use cases don't really care for that property. You can also collect that identifier if 1) you have a legitimate reasons to do so and 2) don't share it with third parties.