In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.
The concept of 'zatanna nude comic' is not something that is considered acceptable. It goes against the principles of respectful and meaningful entertainment. Comics should offer inspiration and enjoyment without resorting to such objectionable subjects.
Comic Con is all about celebrating comics, movies, TV shows, and various forms of entertainment. There's no connection to porn. It's a family-friendly and enthusiast-driven event.
Generally, porn comics are not considered legal or ethical. They can have negative impacts on society and go against commonly accepted values. Laws exist to restrict their production and distribution to protect public interests and moral well-being.