Comment by reaperducer

Google employees are not a random sample of their user base, so such experiments would be meaningless.

This is a lazy argument. Google isn't some scrappy tech startup where 90% of the employees are programmers. Google has legions of lawyers, mailroom clerks, accountants, travel coordinators, janitors, cafeteria workers, middle managers of all stripes, and so much more. Thousands and thousands of people it can test on without violating the privacy of the general public.