[University of Maryland researchers examining Facebook use discovered that] a person's disclosure of specific personal information such as
religion or political affiliation contributes less to a robust
personality analysis than the fact that the individual is willing to
share such information in the first place.
-- Shoshana Zuboff. The Age of Surveillance Capitalism: The Fight for a Human Future at the New Frontier of Power (PublicAffairs, 2019) p.272.