I predict in the long run they should have taken the $1B from Facebook. Yes they have users, but where in future will revenue come from? Startups like this come

I predict in the long run they should have taken the $1B from Facebook. Yes they have users, but where in future will revenue come from? Startups like this come in two kinds, one that can become a standalone business (think Apple or Microsoft or Google) and the other an IPO or sellout business (like Youtube or Instagram) that eventually makes sense to a buyer as a piece of their revenue puzzle. For the former you need products that people buy and the latter you need buzz that attracts buyers. For the latter any excitement increases the chance that someone will eventually buy it. To me Twitter is the latter kind but it's still trying to be the first.