@Jboy
Well a platinum is still a platinum and the difficulty ratings will always be somewhat subjective. Bottom line is platinums show your dedicated to conquering the games you play which in my eyes is positive. And the tougher the game the more dedication you must have to achieve platinum. I think this is an excellent new idea for another ranking category which offers someone who has fewer platinums and plays a bunch of more difficult 3-4+ star games like Demon's Souls, Guitar Hero, Wipeout, etc, a chance to be further recognized for their skill. In the time it may take for them to plat 1 4-star game, it may take someone else the same amount of time and dedication to plat 4 1-star games. So adding this difficulty star ranking system makes it much closer to balancing the platinum count playing field too.
I don't have any 4 star myself. I need to get on that.