I love Miss Manners who rules that:
"Look, e-mail is a very informal means of communication. It shouldn't be used for formal purposes. That it doesn't always consist of perfectly formed sentences does not alarm me."
Link via Sara Butler who got youthful Harvard punditosopher Matthew Yglesias to think that she really meant that we should have more Sarahs and fewer Zoras, thus establishing that even though Harvard's philosophy department ranks higher than Chicago's, it doesn't do as well at teaching the neo-Straussian UC style that demands readers who can successfully distinguish between substance and high-spiritedness.