Context:
https://www.lawfareblog.com/ofac-around-and-find-out
Another amusing lesson arises from a griefer who sent small amounts of Ethereum (0.1Eth or about $200) to numerous high-profile Ethereum wallets. These wallets then found themselves locked out of numerous “decentralized” services.
This was due to how centralized services Chainalysis, TRM, and Elliptic provide an oracle to say, “This is a sanctioned wallet, do not accept,” to the numerous centralized services that actually power the Ethereum ecology.