Yet he is only wasting his time.
I think he is also wasting his time but he knows what he is doing. This is bring a lot of attention to him from the public and the whole world. It is going to be such a hot topic that everyone would want to know about it. I think also that there may be some financial gain for him. He comes popular, even if he loses, you know he's going to write a book about the expereince and get a good publisher to publish it and he will go on book tours and start to get royalties from its sales.
In my opinion, he is just looking for sensation through social media and it is true that he is just a way of popularity to gain profit. because of course Sotashi has not been found until now and it is not known whether Sotashi is a community or an individual. Sotashi disappeared because he was wanted by the government, and it is impossible for the United States to reveal who Satoshi Nakamoto is.
Currently, there are many who claim to be Satoshi, some have even made documentaries, but believe me, those who claim to be the creators of BTC are definitely fake. Even bitcoin developers such as Dorian, Szabo, Finney, Back, Gavin, always deny that they are Satoshi Nakamoto, a figure who is highly sought after by countries around the world. So finding out who Sotoshi is will clearly just be a waste of time, it is better for us to think about buying as much bitcoin as possible and holding it for the long term.