Right, whirpool has never been a blind coordinator as it was sold, it could associate all the inputs and outputs through the ip, even using tor. It doesn't matter if you use an anonymous ip, if you use the same ip all the inputs and outputs are associated no matter how many coinjoin rounds you do. It is literally useless, it all comes down to the good faith of the owners of the coordinator and also to the fact that they have not stored the logs.