I would gladly tell the casino so that they can protect themselves for a reward.
In my experience, everyone would actually say this but only a few would actually report the issue especially when they have everything to gain from it.
It will give you something and the casino will probably reward you. It will be better for you because you are not using the leak in the server personally but can tell the casino so they can fix it quickly.
Yeah using a disadvantage of a person to our own gain is rather selfish and unethical.
However not everyone has E