trying to ban adresses like this would never work because you don't have to ask permission to the recipient when you send them crypto. Every single large entity

trying to ban adresses like this would never work because you don't have to ask permission to the recipient when you send them crypto. Every single large entity (eg. exchanges, companies, etc.) would end up with tainted bitcoins. The only way would be to have all the mining pool onboard to ban them from the chain itself but good fucking luck convincing them, the entire point of bitcoin in the first place was to prevent this type of interventions. Laundering crypto is extremely easy and cheap. You trade it on a crypto-only exchange (no KYC there) and trade it back. You can go further by doing both trades on different platform and using Monero. Now your dirty BTC belong to the exchange and will get spread out to everyone.