It's not that bad if gamblers are going to believe in superstition and there's nothing to lose if they will not believe on it. And what you have been said is a mere fact that we had our very own way of believing which depends on us if that can help us to grow with our gambling career, then just continue it.
but yes it should not be a big problem whether you believe it or not , the debate are not necessary.
I respect all gamblers that has their very own belief and opinion. It's good to see that there are gamblers that are becoming lucky and believes that is because of their superstition belief. I don't have any against them, as long they are experiencing good result with it and it helps them to have good amount of winning, that's fine.
the realistic one will prefer to gamble on sports or maybe just stake randomly on random games.