while i feel like i couldn't give my opinion on the idea that there is a thing as a good RP (Mostly due to that i share an opinion with most everyone here and that is, that it is subjective) however i feel like i can give my two cents to the idea that RP is Art. And when i mule it over then yes RPing is an Art in the fact that is like video games (it's an interactive form of Art) and Like books (it's an written form of Art) and such you could categorize it as a form of Art