I think plenty of casinos use shady tactics to "cheat". Like have the slots loose when your playing with a bonus and when its real money they tighten them up. Ive had casinos delay withdrawals for hours on end in hopes you will redeposit. There are dozens of other tactics im sure.
Why would they need to cheat when everything you do with your
BTC there costs a thing? That except deposits of course. Am talking about withdrawal fees and house edges.
There's no need to cheat if they've got a legitimate business model.