I think, someone with much money AND much BTC wanted the BTC price to rise. So how he can try this without paying too much? Right, try to pump the price on a trusted exchange with the lowest volume, BTC-E
don't think so as a smart trader knows it will get dumped down directly. they are not trading to lose money. traders on other exchanges don't follow btc-e. most people look at bitfinex or bitstamp.