In a game with E8S why is SE banning people with suggestive Adventurer Plates?

[Gemina]

and so is still the question: why allow SE the camera to go in such angles? they could easy limit it for the plates, why wasnt they doing it? Everyone knows, if something is possible someone gonna try out, so why not avoid such behavior by technical limitations on first place?

It's called a privilege. These are granted in good faith that they won't be abused; when they are, those privileges are taken away. I shouldn't have to spell this out. Parents are supposed to teach this to their children, so the fact that this even comes into question as far as what is and isn't appropriate just lets you know the maturity level of those who do so. You are trying to defend sexualization of something that doesn't even belong to you (your avatar and everything about it is the property of SE).

Nudity is inherently sexual. The differences are those cultures don't see sex as being a dirty act but as the creation of something new.

No, it's not. Nudity is sexualized, and the very same cultures that do so also shame it. Nudity by itself is just that, nudity. A nude human being is simply in their natural state. This is true no matter what culture anyone may refer to.