Absolutely not!
Remember, this is a business, with real people, in real offices. They talk over the water cooler, they have meetings internally, with supliers of all sorts, clients, partners etc. They make phone calls, go to conventions, talk to game devs, software devs, tool devs. They talk to journalists, they change jobs, they talk to old pals who moved on to different companies, they have intermal meetings again, share the gossip.
You see, under this much cominication nobody even needs to break any NDA. Just by connecting some dots and loos individual pieces of info that means nothing on their own, they can start building up a picture. And the more of a picture they have, the more aware they are for every next hit, and the picture gets sharper. Don't forget, also, that a lot of the big cheese at these million dollar companies are highly competitive, and business-smart. They love playing that game of trying to be ahead of their competitors and peers.
I'd bet they don't even know what is most of the crap circling around on pastebin and Digital Fucking Foundry. They have much better stuff to do.