What's even more impressive than Sam's web site (which has been online for years) is that he and his two Hong Kong-based co-founders bootstrapped Bitmex, a multi-billion dollar company that handled over US$1 trillion of trading volume over the past year with almost no investment.
When they launched in 2014, no one on HN cared! 2 points and 1 sarcastic comment. https://news.ycombinator.com/item?id=8750453