Most "mainstream" / average everyday people still use the word pointless to describe Twitter when I ask them about it and why they are not on it + their thoughts about the service. Not agreeing or disagreeing with this point, just sharing it.
If Facebook had a concept of Followers in addition to Friends (there's no such relationship on Facebook as "I follow you but you don't follow me") and the ability to choose during posting whether the new post is for "Just Friends" or "Friends and Followers", I'd be super happy. Yeah, yeah, and if my aunt had balls she'd be my uncle...
I think Facebook is trying that with their 'fan pages.' Facebook is certainly trying to catch-up with Twitter, even though they have a huge lead in many (if not all) respects.
Incorrect headline , the author never says what Twitter is good for. He does indeed say what it is not good for , but then as someone else so succinctly said , pointless comes to mind.