He cited Yves Smith, who wrote that "Twitter feeds that... false sense of urgency. Most things can wait. Indeed, a lot of things are better off waiting. But we are encouraged to be plugged in, overstimulated all the time, at the expense of higher quality human relations."
Now, another -- more positive -- point of view from TechCrunch, in Why We Often Write About Twitter And Will Continue To Do So:
"Twitter has grown into far more than just a messaging or status updating service, and anyone who really uses it or develops for it knows that. It’s where news gets broken and what more and more celebrities openly turn to to start getting social with the community... It’s a place where companies can do business while people can choose to engage only with their peers instead. It triggers and support the organization of worldwide charity events...
Basically, it’s as social as social networking services can get."