Having trouble finding where it says a post needs to be CnC. There's a rule in Off-Topic where you need to explain your answer to a question, and this is the same.

@KDigityDog: The goal ultimately is for you to talk about the artwork at all. Deleting posts that I can move to a different thread at random, and have it still make sense is not a bad thing. If you want to publicly admire something an artist put actual time into, you can take the time to explain why you like something.