Can't relate. For me he's usually hanging near a river or pond, but good to know he can be in other places without water!! Since I just got rid of all my rivers..
CJ doesn't show up enough to be a terraforming nightmare. My regular villagers are though. It's like they know when I'm terraforming and come to get in the way.
I can just picture him being like "Alright chat, do we... Climb the cliff, or not? Donate to vote!" and then the chat goes wild and this idiot is stuck on a high cliff because he did it for the memes.... (Camera pans to Chat, spamming poggers)