@mpjgregoire @lizzard @lmorchard "most (all?) ethical systems have no objection to copying"?!? That's not true at all!
Copying another artist's style, someone else's jokes, a friend's hairstyle, a classmate's essay, are all considered in poor taste or even unethical.
In almost any situation where original thinking could be done, copying is considered shoddy and second-rate.