Wasabi Wallet doesn't utilize any post-mix spending tools, and if part of the users practices bad spending behavior (like spending directly to a centralized exchange), then the other part of the users (more advanced) can potentially be deanonymized in a process of elimination.
This is such a well thought argument that never came to my mind. So we can pretty much say that even if you take part in an uncensored Coin Join, the more users have bad spending behavior the higher the chances are for your Joined outputs to be de-anonymized?
Not necessarily, because I believe that OKEX exchange has no-kyc tiers and that would not automatically connect those addresses with customer identity, unless OKEX stuff demands it from him.
Unless the customer uses a disposable device and e-mail address and takes extreme care of their own behavior after which they carefully dispose of their device and any other fingerprint, I am pretty sure OKEX does not allow Tor registrations and therefore they would have information to hand out to authorities for identification. I have a big doubt OKEX or any other larger exchange allows you to seamlessly deposit joined coins from a Tor IP.
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Regards,
PrivacyG