Some PETA campaigns and ads can come across as lacking in taste and subtlety, however they make a valid point. Those who have a speciesist attitude toward non-human animals (discrimination on the basis of ones species) may find that billboard offensive. I personally do not. To me there is no difference between a murdered human or a murdered animal. I recognize that non-human animals have a right to life just as human animals do. Others may disagree and put their lives on a pedestal above other animals. PETA is challenging these assumptions and in my opinion good on them for doing so.