Of course, data confidentiality should come first for any company. But what do we see in reality? Mobile operators sell databases, sometimes it seems that even banks spread information about the contact information of their users. If Facebook adapts cryptocurrency payments, it will only help its rating. There previously were much info that Facebook confidentiality = zero, everyone can buy user's password, what r we gonna see if they launch crypto payment?
But still people trusting them and using facebook platform by billions of people.But when it comes to crypto centralized will make the introduction of crypto on their platform makes no sense so if anyone want to invest just based on their reputation are talking huge risk of giving their address traces which might turns out into a problem later.