if this is true then it really must be stopped, faking market data is a serious crime, if you have watched the movie of leonardo di caprio, the famous pump and dump method that is artificially inflating the price just to look expensive to other players, a lot of exchanges are using this, i have no solid proof though, but i think it can happen and can be done.
I think its possible, just read somewhere that even Bitmex was accused of manipulating prices of a certain coin. We dont know, but its possible it may happen. Also, maybe they are doign a worldwide FUD network to influence cryptocurrency price. All are speculation but its happening and we are asking why.
Is BitMEX Manipulating the Price of Ether; CEO Arthur Hayes Claims ETH Will Drop Below $100