We too find them controversially shocking and offensive!!!
Shockvertising, as described by wikipedia is advertising that is deliberately shocking. Which can, at times, be lewd, vulgar and offensive.
They are deliberately made that way to attract attention...
Question is... How far can one go???
Recently there's been this series of Extremely Offensive Tee Shirt Designs Posted as Ads on Ads Of The World which (if one reads the comments on the original posts) even atheists consider offensive.
Eshe Streetwear:Religion is garbage
Ads Of The World
Here you can see images of the posters in situ and also branded skateboards and t-shirts.