Love it! I also get a kick out of some people getting offended by the billboard, but in the same comment saying that "God will judge them in the end." I agree Leon, major facepalm on some of the responses.
T-rex and johndope's comments are hilarious in their righteous indignation - replying to them is, however, a wasted effort. It would be like discussing ethics with a pig - it's a waste of time and it pisses off the pig.