Facebook prohibits apps for personality quizzes that have been collecting and storing a wealth of information about their users for years. The ban comes a year after the Cambridge Analytica scandal, when it turned out that the company had received information on up to 87 million people via the quiz app "thisisyourdigitallife". While providing an easy way for unscrupulous developers to gather a wealth of data – after all, they depend on sharing personal information – the problem was that Facebook has allowed developers to gather information about friends' friends for many years, never thoroughly
The personality ban is part of Facebook's broader approach to the possibilities and access of developers on its platform. Facebook blocks a number of legacy APIs for accessing user data and prevents developers from accessing new data if a person has not used the app in the past 90 days.
Facebook has made some serious changes more than announced a year ago, and some of them, like the 90-day access restriction, are now entering into force. Facebook does not say that the ban on personality quizzing is of course due to Cambridge Analytica ̵