Everyone Who Changed Their Profile Pictures To The French Flag Just Got Duped Following the tragic terrorist attacks in Paris last week, millions upon millions of Facebook users have changed their profile pictures with a French flag filter. While that may seem like a touching gesture, they may have just opened themselves up to some serious psychological analysis. According to reports from Daily Mail, Facebook has a history of using photos like this to perform psychological tests on users without their permission. We saw this same thing when gay marriage was legalized and the American public decided to change their Facebook photos to have a rainbow filter. Dont get us wrongwere in favor of showing France the support they need. But doing so in the form of a prayer is stronger than a marketing analysis tool. What do you think? Is Facebook abusing the trust of its users? 