In the future to prevent crypto mixers from troubling the authority they will increase the time to do some background checks on their customer. I'm saying this due to how abusive leads to KYC in crypto casinos.
That defeats the purpose of mixing
Do you think using centralized crypto mixing doesn't have the chance of defeating the purpose of mixing? You entrusted someone you don't know from Adam to mix your coin for you. You don't know if the service of the crypto is mixed very well, and you don't know if the mixer is operated by the Feds. An example is how Sinbad use innocent people's fund for their dirty fund.
The only mixing that didn't defeat the purpose of mixing is the decentralized one.
they have to trust the mixer in case they ask for KYC will they do because, in the first place, they use the mixer to anonymize their identity and they will also fear that the mixer will hostage their information.
I'm not talking about KYC but the mixer doing some background checks on the wallet address if the transaction comes from a flag, criminal, or scammer wallet.
If one mixer will do that background checking the clients will just choose other mixers that will not do background checking, we cannot change the business model of the mixer that's how they worked and that's how they are being patronized.
They are here to stay if authorities go after them or consider them illegal they always have the darknet to turn to.
How will users of a centralized crypto mixer know that the mixer they used does some background check on them?
Mixing is not illegal and it was recognized by FinCen but rendering the service for criminals, drug lords, etc is what is illegal.