Reply to Can anyone explain why encoders aren't the same as buttons?

Seems to me that a step encoder is simply a knob that when turned in one direction (one click) it sends a digital (non-analogue) signal and vice-versa. Why is that a lot of midi brains can't accept encoders as simply two digital buttons? (or three buttons if the encoder has a momentary push button)

Is it to do with the acceleration of when you turn an encoder quickly? I thought this was handled in software?