I'll take clarity and expressiveness (e.g. how easy it is to deduce intended behaviour) over consistency any day but perhaps I'm missing something? What's the d

I'll take clarity and expressiveness (e.g. how easy it is to deduce intended behaviour) over consistency any day but perhaps I'm missing something? What's the downside of said inconsistency? (Assuming it's trivial to log inputs and outputs of each function call, if needed)