This it outrageous. Browsers are user-agents, not advertising accelerators. They should hide as much personal identifiable information as possible. This is exactly why using a browser from an advertising company is not a good idea. They use it to improve their service... The lie gets old...

This comment was sadly written in Chrome, since I need it for testing...

edit: pretty much exactly 10 years ago they already tried their shit with a unique id. We should have learned from that experience.