If you look at what the op is talking about, it is a common occurrence in almost all games. These predictions most commonly occur in sportsbooks where some of these sure gamers/predictions offer a number to stake and guarantee that the result will be in the player's favour. It is not because the player is addicted, rather, it is possible that they showed him previous games they had won and winnings they had cashed out in the past and convinced him to stake a large sum of money. The majority of the men that provide this even baffle me how they keep tricking players into subscribing to their VIP shit advice and predictions.