this is pretty spot on, for people who like being "in the know" twitter is like your favorite publicly available and easy find-able crack "oh hey what is that guy from the scrubs tv show doing nowadays" "he just tweeted about a charity/podcast thing he's doing tomorrow we should check it out" as much as snapchat/facebook etc are "innovating" with their live video and infinitely desirable ephemeral messaging, twitter remains the way to get info right now without having to dig too deep into a social graph