I miss his posts here. Did the noise to quality ratio drive him away?
Probably he gets much more interesting discussion in his twitter feed. It's mostly other devs commenting and contributing to discussion. Here too many uneducated or biased folks try to twist the message to fit their purpose. No need to argue in twitter, bullshit floats away as it's more of a one way street. Another positive thing about twitter is that anyone putting quality content there can use twitter as reference for future work/opportunities. Much more difficult to achieve same in a forum.