The cards are anonymous for those who are using them, that is the main point. As it has been discussed already, we are not using anyone's identity, account is opened with person's consent.
Can you explain why opening such bank accounts is done exclusively online and with the use of VPN? While it is possible to have legal documents and consent from those people that their bank cards are used in this way, why are you hiding the trail and opening bank accounts using a VPN? Of course, I'm not writing this just like that, I know for sure that accounts are opened this way.