New York Times bans 'silly' tweet

What do you, dear reader, call a posting on Twitter? I'm guessing the chances are high that you call it a tweet, like pretty much everyone else I know. Apart from the editorial elite at the New York Times that is, which has just banned the word 'tweet' from being used in conjunction with anything other than birds making chirpy noises, on the grounds that it is a silly word amongst other things.