It’s a love-hate relationship right up there with dysfunctional parents du jour Jon and Kate; the media has a middle-school crush on Twitter, and the media is the first to say nasty things about Twitter while Twitter is in study hall. Some of its members are using a helluva lot more than 140 characters to do their damage. The New York Times’ Maureen Dowd and “Doonesbury” cartoonist Garry Trudeau are just two of the better-known Pulitzer winners to dip their respective pens in a big bowl o’ snark to eviscerate the short-messaging service.