what's that you say? that's not what you meant by design?
perhaps. one can certainly make an argument for that case. but a far stronger argument exists going the other direction. even if design is restricted to visual design, there is only a low barrier of entry if you don't know what you're doing. proper design takes just as much, if not more, education and technical prowess as programming.
Take a class full of 14 year olds. Give each kid a deck of cards. Ask each to come up with a new card game. Most won't do it. Of those that don't do it, a large number will not do it because they can't. Of those that do do it, a large number of the games will be new games in the same way that Scrabulous is a new game.