I’m thinking about offering a bankroll investment. I will let interested user to invest on my bankroll and share profit. The advantage on this offer is I will refund the investment in case my bankroll loss since I will consider this a loan money without any interest. It’s either share profit or refund but the only catch is all investors need to wait for the certain date which I will set before the investment start.
Because you will return it if you experience a loss, I think there will be those who want to invest in the system you offer because investors will think there will be no losses, it's just that there is no chance of making a profit because the chance of winning at gambling is not something that can be guaranteed or regulated that we get a profit of what percentage than expected.
But if there is a casino that offers investment in their casino it will be much better and more interesting because the casino can almost certainly be a profitable business, especially if the management is very good so that investors get very definite profits, only the amount is not certain.
However, in all forms of investment there is still a chance of loss, for example, even though the person offering the investment is a very trusted member, that doesn't mean he can't run away with the money or is irresponsible when things are out of his control, the same goes for casinos, so in online investment, there is no 100% guarantee free from scam.