UPDATE -- Pepsi has apologized for the ad -- on Twitter! Suicide ads have generally landed agencies and marketers in hot water. In 2007, GM was chided by anti-suicide groups for an ad which showed a factory robot trying to off itself. And Volkswagen pulled an ad in which a man tried to jump off a roof. As Ad Age's readers have already started pointing out in their comments, the posters look like a PR stunt to get the brand and its one-calorie theme mentioned on talk shows and -- sigh -- blogs. It had better work out that way. BBDO's position on Pepsi is increasingly shaky. It just lost the main Pepsi account in the U.S. to TBWA/Chiat/Day.
Side note: If you like tasteless advertising, nothing tops Dolce & Gabbana's "gang rape" ad from 2007. The company did not pull the ad.