I think digging too much about Satoshi wouldn't make sense anymore. If he wants to expose himself then it would be just easy but it's his choice to keep things in private so we must respect that. We don't know the reason why he has to hide his identity but it might be for his own safety. There are people who are trying to steal Satoshi's identity but everything won't surely work.
I totally agree, if he prefer being private why cant people just let him be, why cant they understand he doesnt want any public attention. Bitcoin has been doing good without him surfacing so why dont we just focus ourselves in bitcoin rather than wasting out time digging or finding who the real satoshi is. Also, him coming out will not make any difference, will it?