I have been using facebook container for a long time. It is a good idea, but as long as we continue to use facebook on the mobile, instagram, whatsapp or the rest of the apps that send information to facebook, they will have all the information they want from us. They know us better than we know ourselves, they know what we like, what we don't... Fortunately we are only numbers, but said information in the wrong hands could ruin your life.
We will end up like in Minority Report in which they presented personalized advertising by facial and retinal recognition.