Simple question, difficult answer.
Many mixers are active on Bitcointalk but how long will each one last?
Seems to be just a matter of time until we'll have our next mixer shutdown.
Pick your one, which is next!
I really wish it was a simple situation, but the truth is, no mixer or exchange is completely safe.
Guessing which mixer might be shut down next is hard if not impossible. The sindbad.io case shows that even places that seem secure can become targets because of criminals. These bad actors can use mixers and exchanges to hide who they are, even with KYC rules.
The cryptocurrency world is always changing, so any mixer service or exchange could potentially face shutdown.
This shows why it's so important to always be watchful and have rules in place to stop criminals from misusing these platforms.