Additionally the magic of Yobit is you can sell to your self, so if you are willing to take the 0.2% hit, you can sell your self large amounts of coins and make it look like someone is dumping, but really nothing is happening. I know because I have done it

By that same logic, you can buy from yourself, so you can make it look like a huge amount of buying is happening, while also no coins are changing hands.

Its for this reason that most exchanges do not allow this type of trade.