Why do people care who Satoshi Nakamoto is/was? It's like wondering the name of the person that created the wheel. Sure, I suppose I would be curious about the name of the inventor of the wheel, if nothing else to raise a beer to them from time to time, but ultimately the wheel is the important part of the story.
Most of us don't.
However, there will always be some people in the world that are obsessed with celebrity.
Maybe, they are being pushed by their curiosity and that made them to think knowing Satoshi is a big deal.
Yes, it is for some people because they want to know the history behind bitcoin but right now, we are not focusing on that but we are focusing on the market.
But knowing Satoshi doesn't make me interested no more. If Satoshi reveal himself then that's not a big deal anymore for us but we are still thankful about this bitcoin that he created.