Yoshit scams lets say 90% of the users and 10% are not scammed, and I am among the 10%, does that enable me to promote them without any problem? Because hey, yes they are scammers but they don't scam everyone!
To the best of my knowledge, Chipmixer scammed 0% of its users.
Similarl, CM doesn't always mix coins for hackers, but at times they do.
At times bad people use this forum too, so lock your account and go to your safe space before agents Mulder and Scully come knocking on your door.