Professional gamblers will think twice when they see this case as we know they can use so big amount at one time and when they win, they can win so much money, which makes them withdraw at once. Even if that casino requires their members to do KYC, those professional gamblers will still think about how to withdraw all of the money if the withdrawal limit is only 15,000 doge per day or max 300,000 per month. They will search for the other casino which allows them to withdraw big money, although they need to verify their account by sending a document.