Roobet could improve it all by themselves without taking an example from another place. However, adding coins does not belong to just one casino neither, it is an idea that has been around ever since casino world started, and I do not even mean like crypto, I mean you could go to Europe which has only a few places that has legal casinos and can cash out dollar which is not their natural fiat, and yet you can use it, meaning they take a few different currencies as well. After that, in the crypto world we are filled with many places that has a lot of coins and tokens accepted as well.

So, if roobet added 5 new tokens tomorrow, that wouldn't be because of stake, it would be because it is a common thing.