http://livk2fpdv4xjnjrbxfz2tw3ptogqacn2dwfzxbxr3srinryxrcewemid.onion/opsec
Swap services and exchanges comply with these agencies and provide additional metadata such as IP addresses, transaction hashes, and transaction amounts. Exchanges enforce KYC anyways, you're already identified there. Additionally, these entities are "poisoning" wallets by sending tainted UTXOs - transactions which can allow them to monitor activity with a high degree of confidence if the user unknowingly spends them.