I don't understand: "Sand Hill Exchange" accepted items of real value (USD and BC) that could be used to "purchase" (or bet on) things named after real securities that trade (or are expected to trade) on public markets for a profit.
I would be surprised if a regulatory body didn't come after this setup. There is a very bright regulatory line around gambling and investing in most countries that a typical person should have known about. What am I missing? Why should I sympathize with Sand Hill Exchange?