Moonshine isn't a commodity which isn't actually sold if I remember right. I don't see why it'd be a bad idea, just put a disclaimer on the top that the commodity isn't actually available to buy and haul around. If Moonshine was to ever become a commodity, the page would be overwritten with the correct information anyways.
I don't see a problem with it, just get that disclaimer in so people don't get the wrong idea. The Wiki was made for content embracing both the server, and what the players make up after all.