Potential investors:
just think about how hard it would be to run a service through which you could actually invest in real stock, whoever runs the service must get dollars and use traditional channels to buy the stock. You would run into so many difficulties and terrible risk.

Most people will not make profit trading in the stock market. That means it would be easy for TorBroker not to hold any real stock, just say so and pay people from their own investments, while still making it possible to allow people to withdraw. Kind of simulated betting. On top of that, they charge fees so it is even easier. They could be paying from their own pockets, too, since this is the kind of scam that would be worth for the scammer to invest their own money in.

Consider that it is a damned Tor hidden service where you're sending your money.