Even more insidious is the armies of salaried mechanical turks on 'grass root' social groups and forums pushing forward a company's whisper campaign without any form of disclosure. You'll notice the same messages surfacing in various online avenues of certain niches nearly at the same time. They make people believe they are on the inside lane of something new and count on them spreading the 'insight' organically amon…
Thankfully most vendors or their marketing agency affiliates that engage in this sort of thing aren't particularly clever about it, so identification of puppet accounts to ban isn't too difficult.