Oh, not really. I've just read fewl articles about this trend.
Some "experts" of population social behavior were saying its due to the conjunction of 1) people being addicted to not wait anymore about anything and struggling to handle frustration when it's not possible, leading to be angry very quickly, like a spoiled kid, and 2) social networks which tends to put people into groups liking the same things, and in being defined more by what they likes than whay they are and do, which split quicly communities into polarized communities who don't really overlap that much anymore.
If I can find some links, I'll share. Most probably, it will be in french, you get warned ;-)