I do not think that they take action on all coins that passes through a mixer. Do they?
While some people may use Mixers to cover up their illegal activities, I like to think that there are others who use mixers more because want to the anonymity in every sense of the word and not because they are doing something shady. Secondly, I do not support tainted coins passing through mixers but then isn't it dumb that after using the mixers they go ahead to send it to an exchange? Why not send it to a decentralized exchange. Or will the government be able to trace it and flag it and then they lose their coins if they do?
No they don’t take action on all transactions coming from a mixer, there are some certain transactions they actually do take action on, the scheme they use for this, is what I don’t know.
If you send a coin from a mixer directly to centralized exchanges there is no anonymity there. If you send to a decentralized exchange then I don’t think there is a way that the government can trace that to you since there is no KYC attached. There is even nothing like a tainted coin in my opinion just the address it’s coming from that’s marked as tainted.
If you wish to send coins from a mixer to centralized exchanges just go through another address you don’t use and then back to the exchange