But what exactly would make you believe or convince you that "this" person is Satoshi if he/she ever decided to reveal himself.
We are still not sure if Satoshi was a single person or a group of people who created the Bitcoin, and I have no explanation on how to point out the right person.
But we all know that Satoshi holds a certain amount of BTC. And as far as I know, we know in which wallet it's in. If someone can show me the correct amount and the raw data of BTC which is not an open source information but exists in BTC ecosystem. Then that could convince me at some degree.
But I don't want to know who he is. I am just glad that he/they made this for us. That's all that matters.