I don't think you will believe sir, in the matter of a person who claims to be able to win gambling well without having valid proof that he really did it, maybe you are joking?
This makes everyone doubt his words because it is only based on arguments alone without any supporting things that he can really do what he said, I think if he doesn't provide any evidence then he is just a scammer. but a fool might take it and hope he can win gambling and get a lot of profit, it's just a bait if there is no follow-up from the OP regarding what is his service.
Proof should be shared here in this thread. I would do what the others have adviced people to do which is to never send money if ever decided to contact. It's easy to say that I earn profit in almost any crypto casino and won't be able to do it right away if someone asked to provide the proof of the profit. If it's for free then you should just post it here rather than making other people to contact you unless you are providing a service for gamblers.
yes never want to be fooled in any case, especially in gambling it will be very risky, there is no credibility and no guarantee for someone to be able to believe it if it does not have evidence to facilitate him saying so, if someone who is experiencing complaints because of experiencing gambling that always loses then it is recommended never to try this kind of thing, if you do it you have lost before the game starts in front of your eyes.