Huh? What? What is that definition? How does that make sense? If I had to guess by the "post-" and the equivocation of "healthy sexuality" purely with "pregnant mothers" (which is partially true, but heavily misused here), this guy is subtly reasserting the idea that sex is only for procreation and if you ever think about anything except putting a baby in your wife, or do anything to make another person think anything like that, you are a pornographer.

And wouldn't this apply to anything and everything that "ruins a normal person's interest"? Of course not! Pro-celibacy stuff wouldn't be banned by this guy. Laws and actions that suppressed righteous sexuality (ex. forbidding depictions of marital relations in media) or lied about sexuality (ex. "you can't have sex while pregnant") would also not be banned. It's purely focused on the good and the bad erotic, with no discrimination between the two.

I never heard of this "definition", probably because it's retarded, like some prude who thought himself more clever than he is in creating the perfect, conscience-binding gotcha. At least other common, but erroneous definitions, like "any depictions of sex" or "anything that makes a person lust" focuses on the semblance of what pornography actually is.