That is the part that is relevant in all this in that no matter how much they think they will clamp down, they are just creating an opportunity for people to be ingenious in the way to do things. People who are of link minded don't even need the exchange sites to make trades all they need to do is create groups which I have seen people do on WhatsApp and buying and selling is being done without limitations, transfers will be made to the banks and nothing would be suspicious. When people are determined about a course of action, they are the only ones that can stop themselves.