> Facebook intentionally made about 400,000 feel sad/depressed on purpose. They bragged that they had 'informed consent' to perform psychological experiments on all Facebook users simply because you joined the site and agreed to their long legalese T&C.

As a certified clinical research professional (CCRP), this is pretty outrageous to hear. Might be an interesting discussion for one of our upcoming glorified journal club roundtables. TY!