I helps them cook evenly. It's a gravity thing, kwim? The side that is down is heavy on the cooking surface so it cooks faster.
Keep up.We were discussing the ones that flip.
Other than just a chance to be snarky, I'm not sure why you posted.
I have a waffle maker that flips. I put the batter in, close it, and immediately flip it and it remains flipped until it is done.
My question, that you chose not to answer is what difference does it make which side is the down side?
Does the waffle somehow know that it was flipped immediately? Wouldn't gravity have worked on either side?