I also want to say again that its not just AIKO because its not based on the character. So even if we were to say no more nude with Aiko, things won't change because you have dozens of other characters that can be rendered to appear underage. So I don't think that is the answer personally. I know that some sites don't allow nudity at all and I don't think that is the answer either...I think that our system in place is fair and definitely unbiased as there is a mixture of team members with different age ranges, cultures, views, etc. And these are members of the Community just as everyone is and some are vendors, some are not but there is a variety for sure. 
Of course we know that not everyone is going to agree with it  because everyone has different views on how it should be done. If we say no nudity, that would cause some to be upset, if we say no Nude Aiko at all then the members that do nude Aiko (and other characters) renders giving the apperance of being over the age of 18 would be upset, if we say all  no matter how underage they look can be nude then you have members with big issues about that as well as laws to tend with.