so, the conclusion is hard to laundry the money using a casino because they will ask KYC if find something weird and big money in a transaction. So, a question is, if we use a bit, under $100 or minimum requirements withdraw and KYC, is they still asking it?, if not, that possible the money launderer will be gradual withdraw the money.
I'm sure it won't work, because the way it works and the logic isn't as simple as you say.
imagine if the amount of money is 1000 times what you say, how long will it take to withdraw it. you can also apply it on some crypto exchanges, if the funds are suspected to be suspicious, then what will happen is that your account will be temporarily frozen.
Money laundering is not something foreign to all of us, there are many cases of money laundering involving large funds.
I'm not sure that online casinos are an option for money laundering, but if land-based casinos are possible, it can happen. and even then on the condition that it will involve many important people to smooth the disbursement.
Basically every online casino or exchange has procedures and regulations that deal with something that goes wrong like one of the examples we are discussing in this thread.
believe me, money laundering is not as easy as we discuss here. because it is an act that is strictly prohibited, contains great risks and criminal sanctions that will await, risking a reputation that has been pioneered.