I was going through some old news archives about Facebook and their privacy policies. I came across the dire EFF warning in December 2009 [1]:
>"The issue of privacy when it comes to Facebook apps such as those innocent-seeming quizzes has been well-publicized by our friends at the ACLU and was a major concern for the Canadian Privacy Commissioner, which concluded that app developers had far too much freedom to suck up users' personal data, including the data of Facebook users who don't use apps at all. Facebook previously offered a solution to users who didn't want their info being shared with app developers over the Facebook Platform every time a one of their friends added an app: users could select a privacy option telling Facebook to "not share any information about me through the Facebook API.""
Well, it turns out EFF was correct and accurately predicted the unethical scenario of Cambridge Analytica siphoning data from Facebook users who didn't even take their quiz.
The bullet points of "fixes" that MZ outlined don't really address the fundamental problem. Facebook's "data privacy" problem is not fixable if they have to ultimately run valuable ads against that data.
[1] https://www.eff.org/deeplinks/2009/12/facebooks-new-privacy-...