See here for details of how CA's data was aggregated: https://theintercept.com/2017/03/30/facebook-failed-to-protect-30-million-users-from-having-their-data-har

See here for details of how CA's data was aggregated: https://theintercept.com/2017/03/30/facebook-failed-to-protect-30-million-users-from-having-their-data-harvested-by-trump-campaign-affiliate/ https://theintercept.com/2017/03/30/facebook-failed-to-prote... You can find that this survey was listed on reddit: https://www.reddit.com/r/HITsWorthTurkingFor/comments/27nnaa/ussurvey_on_personality_wellbeing_demographics/ https://www.reddit.com/r/HITsWorthTurkingFor/comments/27nnaa... Half the reddit commenters claim to have gave them fraudulent information, and they paid people $2 for completing the survey. How is that fundamentally different from this: https://twitter.com/mbsimon/status/975231597183229953 https://twitter.com/mbsimon/status/975231597183229953 > I ran the Obama 2008 data-driven microtargeting team. How dare you! We didn’t steal private Facebook profile data from voters under false pretenses. OFA voluntarily solicited opinions of hundreds of thousands of voters. We didn’t commit theft to do our groundbreaking work. So a bunch of MT users voluntarily gave their information over, for $2, knowing that it would be used for research purposes, and clearly (at least on reddit) skeptical of giving over their information. But that's theft and that's wrong. A bunch of Obama for President enthusiasts voluntarily give their information to his campaign, knowing that it would be used for research purposes. That's categorically different, for some reason.