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?
This is happening everywhere and most users don't care about their data being transferred.The solution can be don't give any information about us to any online sites even if they claims that they are not going to share these details with anyone.