How did you do the poll, though? Were they supposed to pick between two live demos, or did you just ask "should scrolling up increase or decrease the value"?

How did you do the poll, though? Were they supposed to pick between two live demos, or did you just ask "should scrolling up increase or decrease the value"? In left-to-right languages, I would think most people's intuition is to scroll down to move right and scroll up to move left (with a unidirectional scroll wheel, anyway).