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I do not think there is anyone who was able to scam the gambling site as there must required confirmation whether that is before credited or any phase of the transaction eg: before withdraw the transaction must have to be confirmed and usually gambling site doiesn't allow another deposit before the confirmation of the previous deposit.
Betcoin dice or SatoshiDice didn't work like that there was no withdrawal or deposit. You sent BTC to an address and then your hash got a roll, if you won the script would automatically pay it you with a tx back to your depositing address, the whole thing was permissionless and with no account needed, no deposits, no balance no nothing!
True, pretty much why I was surprised when I found a casino that accepted unconfirmed transactions in 2024. I mean, seriously? in 2024? bruh.
Given the setup, I think it's safe to assume folks have probably tried to take advantage of it—regardless of whether they succeeded or nah. But the platform was also shady as they had some ties with ltccasino. 🤔 I'd say, it's either they're dumb or this is part of a scheme.
Of course they accepted zero confirmation and no kyc, because they never planned on paying back anyhow!