I don't believe GDAX is creating fictitious trades. As I said they are the most law-abiding/professional. Plus they have 30,000 new users signing up everyday, s

I don't believe GDAX is creating fictitious trades. As I said they are the most law-abiding/professional. Plus they have 30,000 new users signing up everyday, so they certainly don't need to pretend they are successful. Besides, I personally day-trade an average daily volume of ~$200k on GDAX's BTC/USD pair. And I am just one small fish. Imagine about a thousand other persons like me and it would easily explain their $250M daily volume...