I've heard the drum against clever code for over a decade. This sums it up well:
"Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." - Brian W. Kernighan
It's very unclear what people mean by "clever". For some people, a map or a fold is already "clever", while for others, this is just very straightforward code.
