I agree with Sean A's earlier post that IF there is a future reexamination of this generations GCA tastes and decision making, the trend most exposed to second guessing will be the explosion of remote destination golf resorts. If oil hits $500 a barrel two decades from now, and flying to Barnbougle or Bandon Dunes costs 10x what it does today, I could see my sons generation tearing us up on their message boards for building such unsustainable playgrounds.
A somewhat similar historical marker (I think) were the Estate courses that were wiped out by the great depression.
Switching to a separate line of thinking - as an accountant, I'd be more interested in the pricing of greens fees over long periods of time, rather than the subjective nature of ratings panelists, as a measure of a courses popularity. Particularly in Scotland, where many of the new courses are purposely being built near hubs of already existing popular tourist courses, it seems like the paying customer will tell us over the long term which are the better courses. Will Trump Aberdeen be able to sustain a greens fee that's 2x Royal Aberdeen and 3x Cruden Bay? Will Castle Stuart be able to command 3x Boat of Garden or Nairn?
My final point, on social media's influence: the last few years have been disappointing to me that in most cases social media has increased the group think on a select few "darlings" , rather than provide better leads on undiscovered or forgotten gems. I don't really feel like I need any more drone flyovers of Elie, Sweetens Cove or The Cradle at this point. But maybe that's as much my own fault for who I've chosen to follow or not follow for new info. I do think lots of GCA posters, and Tom's updated CD's, are still among my best resources for good leads on new things to go see.
Michael