Write them here publicly.
Here's the list:
You can see icopress is promoting custodial sites "Whirto", "Tengri", "Mixero" and "Unijoin" as coinjoin services. Now everyone who sends their money there will assume coinjoins are scams because they got their money stolen by yet another "mixing site".
There is no coinjoin coordination service offered by these phishing sites, they have complete access to your transaction data and complete custody of your coins.