Strategic mistake. But we are not law enforcement to say having them here could be better to keep an eye on them all in one place instead of having them go elsewhere scattered.
I’m neutral on this. Tough call, to be sure, but some of us gave theymos like $20 a long time ago and expected him to run the forums in perpetuity. And he has indeed kept the lights on around here.
The best argument for banning mixers though is because if the government can stop a mixer, then you have risk if you promote/permit them.
Let this be an impetus for creating decentralized privacy solutions that can not be stopped.