It surprises me to see that shame would be an incentive NOT to read something. The West is sometimes descrbied, albeit with a broad brushstroke, as a culture of guilt. Whereas the East is described as a culture of shame.
Yet, on the subways in Osaka and Tokyo (rest of Japan too, at least on trains) you can see middle aged men with some of the most kinky Manga imaginable, lots of S&M, bukkake scenes, young girls watching yaoi Manga. The culture of shame feels nothing about openly showing that they are viewing hard core pornography, yet the culture of guilt would feel shame about reading HP and Hunger Games?
Doesn't add up.