I know what you’re thinking: COMIC SANS?!?? How could they? (Do atheists ever consult with professional graphic designers before doing these things, I wonder…)
Otherwise, though, these are nice, clear, positive messages that at the same time are sure to piss some people off, and also hit people in that same emotional frame that I see all the time in theists’ billboards. There might be some people driving along who initially mistake them for Pro-Life Across America billboards, and then their heads will explode as the message sinks in.