I don't know casinos are viewed as a bad actor in the cryptocurrency market but for the fact that gambling have helped to solve so many mental stress issues and other work related symptom it quite unfair to refer to casino as questionable business not doubting the fact that there are also several negative implication in gambling such as gambling addictions.
There are some high profile religius leader that preach against gambling, whether with crypto or without it, they say it is haram which means it is forbiden for the youth to endulge in the activity; Gambling has also help some people kill time and also fun, put the money picture and you will find out that so many lives has been lost as a result of gambling, all human on earth don't have the brain to accept loss when it occur to them.
So if we must discuss reputation, because even though the house system is designed to favour the house edges, and players only when there is high luck, but then players are still patronising most new and old casino won't means the reward.
The devil you know is better than the angel that will deceive you, some people stick to one particular gambling for some reasons but all gamblers don't joke with security, anything that will affect their balance, they don't joke with and other minor features and that is why I think gamblers stick to one casino.