Looks like the wildcat banks/shadow banks are starting to become more like bank banks, Tether has been black listing addresses and funds for sometime now when working together with authorities and now they're ramping it up with anew voluntary wallet-freezing policy  

Designed to comply with Sanctioned persons on the Office of Foreign Assets Control (OFAC) Specially Designated Nationals (SDN) List.

https://tether.to/en/tether-introduces-new-policy-to-strengthen-ecosystem-security/