more like the joys of "robust" APIs where instead of having one valid input and rejecting everything else you have billions of valid inputs and raising an error

more like the joys of "robust" APIs where instead of having one valid input and rejecting everything else you have billions of valid inputs and raising an error is considered a bug on your side. Worse of all case insensitivity, not all languages have the same casing rules, so you just ask for bugs that only appear when your user is not US American.