Sounds like perhaps he is attempting to help set the stage so that his preferred clients will be able to purchase Nintendo stock dirt cheap, either before E3, or possibly before Wii U potentially becomes a huge success. Having a part in helping to drive down Nintendo stock price, as much as possible, before their new hardware launch, can have serious advantages for the smart investor.
I do know that my dad is looking carefully at Nintendos' stock price for his clients. If it then goes beneath a certain value, I know that he will recommend to his clients to buy shares. Exactly how many shares, I have no idea. Patcher purchased Nintendo stock only after the big boom their stock price went through, instead of before. That is why Patcher was able to actually lose money on Nintendo stock, while my dads clients were able to nearly quadruple their investments.
As for the Activision claims, I think him suggesting that simply serves his companies purpose. Anyone who has followed gaming knows that this is about as likely as the American government attempting to do away with all corruption within the federal government. But if they are able to convince a few Nintendo share holders to sell their stock and lower its value, then, again, I believe its overall purpose was well served.