I don't see how it is an 'unfair' advantage. Anyone could do the same in photoshop,gimp, or paint.net. Of course it's too late to simply pickup and start learning how at this moment, but to those who already do this (because it is a popular rpg maker technique) I really think it is fair. They took the time to learn how to use photoshop or an equivalent, thus they **should** have the advantage. Besides, if you wanted to make that rule now, some of these maps would be disqualified.