I believe Son has succeeded with this strategy if the bar for success is him getting rich and getting others rich. In the early 2000s he came from nothing, made a fortune, lost it all, and then remade it again. But at the end of the day, his strategy essentially hypes a company which then IPOs and he offloads his risk to the general public. He might be a good example of survivorship bias, how many have tried this very same thing only to fail miserably?