I know that this is not a very popular opinion, but I will go on about this none the less. Comic book media these days is pushing boundaries in new ways that readers have never seen before, good and bad. Themes within our favorite comic books are becoming more and more in line with what you would adult material. But at the end of the day comic books are meant to be advertised to younger audiences.
Some of more explicit sexuality along with the graphic scenes of violence and gore are just too much for a lot kids to handle. Teenagers won't care, but think about the number of people under ten who read comic books. This mostly of this refers to Marvel properties but some of it involves DC as well. Anyway, I think that a lot of comic book runs need to be toned in order to have kids be able to enjoy a story without seeing someone have their intestines ripped out. But what do you think?