People can claim that casino are preying on them all they want but the truth they keep avoiding is that signing up with a casino is a personal choice, if you are willing to gamble then you should be willing to lose money, a person can't be careless enough to lose over $200k in gambling and then blame the casino for it, i understand why the regulators do the things they do but sometimes people should be held accountable for their own actions and maybe the world will be a better place.
I have personally never seen a casino that would force a person to deposit money onto their site, with most casinos you can even close your account if you want to, but once someone gets careless everyone wants to blame the casino, we should blame the gamblers too, I don't blame the casino when I lose money to it.
Casino owners do not always feel happy when gamblers are always winning if it is possible for gamblers to lose huge amount of money under short period of time casino owners would be happy, and they can even make gamblers to keep losing, this is the reason governments regulate casino so as there will be player protection. When a gambler won £260,000 and losses £200,000 under 12 days this show that the casino do not care to protect the gambler and make him gamble responsible or for him to take a break when he was losing, they care how the gambler will lose the £260,000 he won, so the regulators did the right thing to fine three casino operators own by Rank Group.