1) They are not a startup. They're over 4 years old. They have officially passed the starting phase
2) They have not monetized since graduating into the big boy businesses phase. Riding the coattails of VC's for years with no clear plan to reach profitability is not business
3) They are instable as hell. They crash nearly everyday, with millions of dollars in the bank, hundreds of engineers working for them, and 4 years of development under their belt, and they have a frickin meme because of how instable they are
4) They've stopped innovating. Nothing new has come from twitter in the last 2+ years other than their API. 140 character messages, we get it.
Blatant buzz word fanboyism is still running amok apparently.