I would prefer to say 'any' gambling winnings, but many online casinos have a policy to not honor winnings in the case of extremely aggressive bonus abuse.
Granted the word 'legitimate' is rather vague. Non-payment of legitimate gambling winnings. I expect all casinos to offer a fair game as evidenced by the fact that the cards or dice observed fall in line with statistical norms. Game results are not consistent with a random game. Reasons for inclusion on the blacklist include: My blacklist is a place for the most unethical of Internet casinos. On this page My blacklist is a place for the most unethical of Internet casinos.