While it appears they likely have made backroom deals with Poloniex in order to wash trade to defraud investors, I do not believe that particular dump was a wash trade. The single entity pump and dumper of Ethereum seemed to add around 5000 BTC to the buy side in the course of his attempted scam to raise then dump on you. He has now lost around 2500-3000 of that. I don't think it was his plan to have someone dump that much on him in one sell, which is why nobody ever pumps IPO scamcoins with horrible distribution in the first place like NXT - the dump threat is too high.
If he continued his orchestrated scam pump, he could probably get it to like 0.035 by dumping the rest of his money into it, but then he'd need to instantly dump at peak to get his 5000 btc back and I doubt anyone is stupid enough to put up walls on the buy side for him to dump on you.
Separate discussion on the fact that Poloniex is likely accomplice to this scheme of facilitating wash trading for just one single coin in order to help the pump and dump scammer:
https://bitcointalksearch.org/topic/it-is-time-to-question-poloniex-market-manipulation-1473947
Your insanity overshadows real Ethereum criticism. Carry on, worth the popcorn.