I still don't understand how crypto mixers are supposed to work. Surely if you dump stolen crypto into a mixer with other bitcoins then all of it can and should be treated as tainted.
I had my PayPal personal account immediately frozen and closed without recourse just for (unintentionally) putting a few hundred dollars of bitcoin through a mixer.
1. Purchased $200 of Bitcoin via PayPal (never doing this again — took weeks to settle) 2. Created a receiving wallet address with a wallet app 3. Moved Bitcoin from PayPal to new wallet address.
This was innocuous, I wasn’t trying to cover my tracks in any way.
What I didn’t know is that the wallet had an automatic tumbling feature, so the money I put in got mixed.
And PayPal immediately closed my account. Tried every way to get it back but no dice. All funds frozen for 6 months before I could redeem them.
So yes using a mixer can get you tainted.
It's also possible to remove the link to mixer if you bridge on the Ethereum side. So you would have a wallet with a different currency with no link back to where it came from.