I have been scammed by such casinos and they didn't accept the screenshots proving the rigged provably fair system. It is matter of time to see if casino cheats user and when you try to prove it they usually talk nonsense such as we don't need to scam you because of the house edge. They usually prefer not to be on public discussion platforms for obvious reasons, so this explains why majority of the new casinos don't have ANN thread on forum.
It has happened to many people, not only you and I have experienced it too. But surprisingly, we still try to play in such casinos at that time. But we should be happy because we don't experience it anymore because we already have a list of good casinos and can use them to play gambling in peace. We should always avoid scam casinos, especially if we have experienced them before, so we can know or have a list of casinos that we should avoid. Even if those scam casinos have ANN threads on this forum, it won't make us want to try them, as there are already a lot of unresolved cases.
For me, the casino should have enough bankroll to pay its players. Yeah casino can market themselves by giving referral bonuses, deposit bonuses and all other types of promotions but at the end of the day, they should have the money to pay the gamblers. If they do not possess the money, they won't be able to pay and hence their gambling site will eventually be shut down.
But unfortunately, the casino doesn't give an explanation about the amount of money they have. But we already know that trusted casinos can pay the money to the winners and the casinos are still running promotions that can invite more gamblers to play in their casinos. This proves they have a lot of money, although we don't know how much. But at least they have survived and even become a big casino.