Does the Disney PR department gear its advertising towards the dunderheads on Ain't It Cool's message boards that have been picking apart Guardians of the Galaxy information for a year and a half?
No, they almost certainly use a multi-pronged strategy - a year and a half of 'leaks' to the hardcore fans (or 'dunderheads' as you would term them), stoking the fires of their enthusiasm, so that they will then evangelise the film when the marketing for everyone else hits.
But that year and a half of 'leaks' will most certainly
have come from the Disney PR department. Indeed, they'll go to great lengths to ensure there are no unauthorised leaks of
any information.
And the reason they want to control the flow of information is quite simple: that way they get to control the presentation, and that way they can manage the response. So, when half the player base get hit with the sticker shock of a $50 PHB, they can turn around and say, "yes, but it includes everything you need to play", or "yes, but it's a 600-page book", or "yes, but look at all this wonderful art!", or "yes, but it includes a three-month subscription to the new DDI", or whatever.
But if they don't do that, they get what we saw a few months ago: lots of people arguing over the price, detailed threads about the prices through the editions and adjusted for inflation, and that "are you less likely to buy now?" poll. None of which has an upside for WotC.