Speculation goes around that Chinese exchanges that will be back in operational state, will report everything their users do directly to the government. In the long run, I think this will be something that basically every crypto exchange will be doing in order to maintain its operations - governments won't just sit back and see this eco system grow, while people refuse to declare their holdings/gains. In other words, if you end up making profit, and you don't declare any of it, you'll be dealing with the government, but then in a negative way of couse. I see another major reason as to why the peer to peer market will continue to grow exponentially in the forthcoming years.