Jeff Greenspan’s Letterbombing doesn’t really work anymore thanks to the Facebook redesign (although it could still work on Twitter), but the idea got around the fatal flaw in Matt Troy’s comment art: Any can just delete a strange comment. What’s a lot less apparent to any spam screeners who might be out there policing Glenn Beck’s Facebook page are profile pictures. There’s where Letterbombing comes in. By posting innocuous messages on any given Facebook wall, Greenspan and his friends could slip past the filters and insert their real message onto Facebook walls by hiding it in their profile pictures.
Above: Letterbombing by Jeff Greenspan