May I know if you have an evidence to back up this claim? That things does not carry over? because far as I know, it does carry on to another casino [in your word: book] if they share the same provider, there are instances of it.
I've had talk with several casinos' representative and they confirm this. It's also been made known publicly by several representative throughout the boards of this forum that they communicate with their "competitor" to keep gambling environment safe from abusers.
I should have said abuse such as arbing doesn’t carry over if not caught ahead of time. Information is shared. If book A limits a player, when he moves to the next book with the same provider, he’ll have the same limits. But this has to be caught ahead of time. If not, the player is in a lose lose situation. He either loses all of his bet or loses his winnings.
Imagine if this happened to you. You are playing at Stake and get banned. So you move over to Sportsbet and make a huge wager and win. Sportsbet can’t come back and grab your winnings saying that you were an abuser at Stake.
I’ve never heard that happen in my life unless there is some type of clause about a sister book. I think the 5dimes family and Bet Phoenix family had sister book clauses but may be wrong. Most of the time it applies to bonuses. They are fiat.
Why do Stake and Sportsbet has to be mentioned here?
Moving on to the topic, about abuse doesn't carry over if not caught ahead of time... I understand correctly you're suggesting that casino has to do preliminary investigation of player's past history across books and they shouldn't be allowed to confiscate winnings and voiding bets if the abuser get caught after the action was made?
It's a bit crooked principle, is it not? It's directly facilitating the abuser to keep doing what they did. Got blocked from one casino? Sure, no prob, he can move to another one. Or better yet, create another account on the same casino. Because as long as he was not caught ahead of the time he made bets, the casino has to honor the winnings.
And about "sister casino", I'll have to agree with what Mahdirakib said. It seems you need to broaden your horizon. I believe there are multiple instances it's being mentioned --either directly or simply hinted-- across many boards, but here, a public statement that's ready to be read by anyone interested, made recently, a casino representative explaining how things and detection works with them to create an abuser-free ecosystem:
[...] We were able to resolve this one quickly, as there was not 100% evidence of wrongdoing. But if a reputable site is taking weeks or months to complete an investigation, its because that time frame is merited. When innocent players get caught in the crossfire, it is certainly unfortunate, but it is the bad actors who are to blame, not the reputable operators. We continue to work closely with our "competitors" to ensure the integrity of online gaming, as a whole.