It is obviously a misinterpretation of the original idea behind "security by obscurity is bad". Same goes for "goto considered harmful", which is not always tru

It is obviously a misinterpretation of the original idea behind "security by obscurity is bad". Same goes for "goto considered harmful", which is not always true. Although, Kerckhoffs's principle are a good way of describing how a secure cryptosystem should behave. This is what people should have in mind. Obscuring will just add some delay as you state, but it might be irrelevant in many situations.