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Yes, you are right. Fraudsters will always try to deceive people, but it will depend on how they can avoid being deceived. That person can also choose where to play gambling and does not have to select a gambling site that he thinks can harm him.
Both gamblers and gambling sites are not wrong. They each have different desires. So, in this case, it all comes back to each other and there is no compulsion to play on credible or not credible sites because it is the gambler who has to be held responsible if they want to gamble on the gambling site and they should know how much they can use the money.