Does the depiction of something taboo encourage the audience to partake in it, or does it act as an outlet for sexual feelings that are inappropriate to express in real life? I read something ages ago about the sexual culture of Japan - specifically about sex crimes, and how Japan had very few (which could mean just very few reports), which this article suggested was directly related to the availability of sexually explicit/dissident manga because it allowed people to deal with their desires and not need to express them inappropriately.

At any rate, I don't think it's the same a child porongraphy. It's not real. No one is being directly exploited, abused or victimized by it - and I firmly believe that blaming art (even pervy art) for problematic behaviour is pathetic and lazy.