O come on... you really think people who can crash the market would talk there?
The guy who obviously knows something is this guy (he twitted about stamp news 1 day before they stoped with trading).
https://twitter.com/AdamGuerbuez/status/553236379543830529/photo/1
Same thing with DrewR from tradingview when he put a 17K BTC wall on bitfinex and created an instant short squeeze in mid october (that resulted in a downtrend in the end anyway). Remember that?
BTW they don't control the market, they are just able to temporarily push in a direction instead of the other with their stunts.