Well, no, because Apple categorizes all of these things separately. The world is not subject to MPAA notions about "Sex" or "Violence" -- rather, Apple splits those up into "does this app have any sex" or "does this app have any violence"

The author has a problem because what he is selling is an app to track sexual activity in explicit detail, which is a huge privacy invasion, and Apple's normal screens are rather good at noticing that

The author of this post is trying to sell an app that is not explicitly prohibited by Apple guidelines, but it is offensive to pretty much anyone who looks at it