As for me I don't really care to see any of those types of avatars, but its not a deal breaker for me if others use them. Avatars are about self representations/moods/ etc. Child porn definately has to be out in all aspects! What adults to do /with other other adults is not my business if its of no interest to me I skip right over it. We make personal choices of how we want to be seen online and off. Not everyone will like it some will love it.