The underground hip hop and various dance sub genres seem to be the counterculture gathering points these days. I've been to some of those events and around the people so as somewhat of a foreigner to all that had some of the divisions explained and afterwards could tell the nuances when presented with them. It's kind of like how the parents of purveyors of the genres you mentioned or people on the outside of the movements may not appreciate the distinctions or culture behind them ("it all sounds/looks the same to me, sonny!!!") but those in that environment could (and can) definitely tell.
Then there are all the flavors of the popular "indie rock" styles (indie rock being such a ludicrous term when referencing some very mainstream acts... yurgh) of which I got thrust into on occasion due to hipsterish acquaintances thinking it would be humorous to have their crazy punk buddy come to the show and freak out the skinny jeans crowd (which of course I played up because lulzity).
The other thing is music is so varied, accessible and in many cases homogenized these days that individual movements can't gain the traction they once did. There are fads and scenes but they aren't quite as isolated or unique due to fusions of styles, tastes that cross larger spectrums without fear of persecution (like a metal fan having some Hank Williams in his collection in the old days) and much easier access to that spectrum (internet/itunes vs. bootlegs, college radio or dropping serious coin on releases).
I think the really special things that happen these days musically are in extreme microcosms comprised of tight knit local groups of musicians and their fanbases. The smaller movements are sharp and edgy like the older ones but once they gain any real traction they drowned out or dulled by the rest of the noise. No more aggressive and catastrophic tidal waves. Just the ebb and flow of a more general tide in a much larger ocean.
Also... we all got old. lulz