Manipulation in the crypto-world is rampant, it happens all the time in ALL the exchanges. But it's not a bug, it's a feature of unregulated markets.

I've posted this before:

Go to "shenanigans section": http://parasec.net/transmission/order-book-visualisation/

Code is available here: https://github.com/phil8192/ob-analytics, just in case someone decides to grab a good chunk of tick-by-tick data (orderbook) and wants to go down the rabbit hole...