They say investing to gambling sites is much safer than doing trading. But if you really want to have control on what you will earn at the end of the day better do trading than investing to casinos.
I never think that trading is much more risky than invest on casino. This is the first time I ever heard. What I know here is the opposite on what you said. Trading is much more safer than invest on gambling site because you can control your own money, meanwhile if you invest you just can hope that big whale coming and lose much to get your profit, if big whale is winning there is no way you could get any profit on it
If you own a casino, like in this case, you want as many whales as possible and as often as possible. They may make you lose money in the short term, but in the long run they just give you 0.9% of what they bet. Without you doing anything. It's like owning an exchange, you just charge "players" for their trades. Actually most of Just Dice profits come from staking, and whales are unfortunately extremely rare, so variance is negligible.