It then switched to being numbers on buildings and street signs, and it immediately felt worse - we were now doing a job for Google, and an annoying one. Mechanical Turk from Amazon was invented to do this kind of chore.
It's now creating training datasets for whatever else Google wants them to - it appears to mostly be for self-driving cars now, to identify landmarks and road signs.
It's definitely not on autopilot, and it's definitely a real problem.