Question: Does everybody know that you are being charged extra for curly fries on combo meal even when the meal comes w/regular fries. If so, why is it not mentioned on the menu or mentioned when being asked that their is an extra .60 charge?

Because they were trying to make up for the discounts they have given to their friend.The same thing you would do so stop complaining

Generally speaking, there is an up-charge for curly fries over regular fries. Regardless of the presence of a combo meal. And no, you are not the first person to notice this. Just assume in any transaction that the soulless corporation is only motivated by profit. And that you are the source of that profit. Take all necessary measures to protect yourself and your money.