Why hasn't this dude been kicked out of here yet?

He continues to talk about (using) regulated exchanges but he still stays here and enjoys the freedom of posting at what could be (loosely) considered as the "hornet nest" of non-regulation. In some other "regulated" place he would be quickly banned and kicked out if he kept on saying something as defiant to the local policy or "ideology". Regarding regulators closing down unregulated exchanges, if the regulators do toward others whatever they might think appropriate, they should fully expect the same policy of lawlessness being used against them eventually. In practice, that would most certainly mean the emergence of solutions (like decentralized exchanges) against which their tactics would be utterly useless and futile