Changing of terms and conditions without notifying the users or gamblers is normal with online gambling websites? Then when you did something wrong or about to withdraw your money they will tell you that you don't read their terms and conditions, and you start arguing with them until you decide to read the ToS again and you find out that it's different.
Some gambling websites consist of wicked owners that willingly plan to defraud their users using the ToS against them, or is this normal? Have such happened to anyone on this forum before?
That's not a casino, that's a scam. Legitimate casinos would notify users of the changes in their ToS possibly weeks, maybe even months before they implement them. It's just something natural. If a casino didn't do so and updated them without notifying their users, I'd just leave since they've fully committed to scamming at least one person with that change.
Afaik there has been some people who were victims, I recall some of them provided proofs while others claimed to be victims but sadly no proof was shown. It is hard though since in the first place, who takes a copy of the ToS of a casino? I certainly don't.
And here is where an interesting question arises. Even if you download the TOS text for yourself at the moment when you read the rules, if the casino is fraudulent, then it may claim that the rules you downloaded were faked and they were different. Even having an archive page with the text of TOS, I think it is quite difficult to prove its authenticity. But I certainly think that such fraudulent actions with the texts of the rules are only done by fraudulent casino sites. Any reputable and well-known casino, of course, must somehow notify the players about the change in the rules in advance.
The main question that worries everyone is, of course, the withdrawal of money won at the casino to your account, whether KYC is needed, commission rates, and sinilar issues.