This guy is known for destroying the price of BTC and Ethereum, the exchange fund FUD article that crash the price of Ether, the double digit shitcoin article did great damage to the price of Ether, now calling for the price of Ether to pick up will be diffficult, it is easier to bring something down than to bring it up
And then ethereum has increased a lot of its price last week but he was not even mentioning it. The fundamental of market totally pegged to the speculators. FUD and bad news will give a bad impact on the market but the decision still depend on the speculators.
Speculators have their goals set long before, so I do not think that information from such a person would have any effect on Ethereum's price. ETH is still dependent on BTC and if there are any minor differences, I doubt that this will happen on the basis of such information.