Since you can go afk/sleep while bouncing, I want to know if it really counts toward jumping which would usually be the space key and certainly wouldn't let you fall asleep while doing it. You would know if it counts towards badges :p
Someone I know suggested that 'jumps' are counted by the reaching of the peak of a jump, rather than how many times a player presses the space bar. Maybe that's it? :)
:) Sorry snarkle — it's late and I'm just messing around. The people who might know the answer are asleep, but chances are good that Millie's info is good.