MewBot is introducing errors

BTW, I just looked at Wikipedia's Arguments module and it works this way -- whitespace is trimmed by default from parameters, but you can turn it off. The documentation appears to say that setting trim=false turns off whitespace trimming, and setting removeBlanks=false turns off the conversion of empty arguments to missing arguments (i.e. the implementation of ine() around arguments).

Our module already implements the latter (allow_empty), adding the former should be easy.