People have been screaming bubble for years now. Facebook's IPO was a "bubble." Instagram's aquisition was a "bubble." Pinterest is a "bubble." While we all conveniently ignore that most startups today are generating real revenue and firms like a16z are massively scaling back funding to early stage consumer startups, I hardly think one "bad apple" (if it is, maybe they will come up with some crazy way to make revenue, I'm not a psychic) is a sign of a bubble.
I largely agree with this, it seems the only area where valuations are getting really crazy are in the app market. I assume the only real plan they could have is acquisition, and even then I really only see Facebook taking that dive.
