1) The fact that you seem to be having a mini-epiphany that - gasp - Twitter doesn't have to answer the question "What are you doing?" just now should invalidate any opinion you publish on the subject.
2) Did you read Lileks' twitterstream? At all? Incisive? No. Typos muck? [sick] [[sic]] Yes.
3) I look at CP once every 3 or 4 months these days. And now I'm sad. Forever.