It's just not man. Maybe bad code has a style, but good code can always be be broken down to optimized implementations if done properly, and even if, you could then say the same thing about a sufficiently developed recipe, or meal, as you can generally tell the chef that made it or diner it came from in town, etc, etc in a lot of cases. I'm not saying it can't be used to make something artistic at some level, but code itself is not deserving of copyright, and copyright itself is entirely busted anyway. The concept is unfit and untooled for modern society.