What about the kids who are forced to be in the pictures? I think if it supports child abuse, it's wrong. Sure, some sick guy might be playing with himself behind a computer screen, not thinking he's hurting anyone, but what about the sick guy who forced the kid to do what they are doing in the picture? By viewing the pictures, you are supporting child abuse. It's not innocent. Maybe you aren't the one physically forcing the poor kid to spread their legs, but someone who is feeding your obsession and making money off you is.
As for the supreme court decision, as sick as I believe kid porn is, I believe the decision was right. Two things. First, it sounded like the law was two broad, leaving a lot to interpretation. Secondly, even though it's sick, it's not the governments job to legislate morality. For the most part, I wish they could wipe it out. But if I gave them the power to do that, before I know it, Christian sites would be banned as "hateful" and intolerant", schools would not allow good literature, on and on. It sounds silly, but who knows where it would end. If you have a problem with moral judgements made by some, by gods sake, teach your kids and support their good decisions. That's where morality issues such as these are BEST dealt with.