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Like we have seen in many cases in which the @OP have some nice offers which are probably scam attempt to have funds from you and then if they get any victim who contacted them via pm or any source then they don't reply to any of the doubts so it's better to forget it also if you want to be safe.
Someone actually sent private message to him after he created this thread. He said that he is most likely to be a scammer, offering his own money to be used by himself to gamble, and if lose, will most likely will charge his "customer" for that lost. And if won, will be unable to be contacted.
I personally won't do this kind of agreement with stranger, rather it is safer to do it with my close and trusted people.
Absolutely personal information needs to be verified before sending it there are many scammers who start this kind of effort by showing greed for more profit. Therefore if the results of the game are properly verified without sharing information, it provides an extra level of security.