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 ethics and morals,
But in every way, It is good to be good.
We don't have to follow people who think to take advantage of someone's loss, especially if it's about using the bugs of a website to attract big bucks. The money we get will not last long and there is a possibility that we will also suffer losses at another time. So better to just let them do what they are doing and if we know something is leaking on their site, we let the team know to fix it right away.