Phil Plait, Randiphile, Bad Astronomer and as far as I can tell, all round nice guy, gave a speech at TAM suggesting that skeptics not be dicks. He posted the speech and follow ups on the Bad Astronomy blog. Jerry Coyne has queried whether he is a dick (Sorry Jerry, Dick is an informal form for Richard, and the gnu atheists already have a Richard) to whom Phil Plait might be referring? He wonders what evidence Plait has to support his thesis. Given that many ex-believers state that sometimes a bit of in your face atheism has swayed them to give up or rethink their beliefs, and they can't all be lying, it would seem that it's OK to be a dick in some situations.
Perhaps it's a discover blog thing? Maybe that's why the Intersection and Bad Astronomy are running a similar line?