I think it is not necessary to login or register before we can view the content on your link. Although, I do not think it is valuable to the extent I will register on that site or something. Do not also have such thing in mind to be thinking about what time Satoshi will become the world's richest. Anything can happen, another thing can become trendy tomorrow, also someone not that known can be the richest tomorrow. What I am implying is that life is changing, you can not just based everything on assumption as life changes. Focus on reality, the reality is about who is the richest, not who will be the richest.