It sounds like a cool thing, but perhaps one of the reasons people don't check it out is the same I have: I am very cautious when it comes to crypto browser extensions because the risk of it being something that scams you just seems too high. Okay, you've shown the demo which looks cool. But I am sure you understand that it doesn't prove that the extension doesn't do anything additionally, such as, say, get the money out of the casino account when a person is logged in and checking if the bet was fair. If you find a way to show that it's safe to use the extension, I am sure it will help make it more popular. Good luck!