Usually casual and responsible players know their loss limit - when they should stop. But since they do not believe in winning, they do not set the same winning limit, although that would be very reasonable. So it seems to me that this reasoning makes sense and it is always good to have two plans - in case of loss and in case of winning.
There are two extremes that usually visit these online gambling sites, those who are barred from real casinos who knows what they are doing and the freaks who does not know when to control their emotions and keeps on rolling even if it means they are loosing, not talking about casuals but these casinos always want these extreme gamblers to make them money, even if they win in the beginning majority will end up busting everything in the end.
I guess that is luck that helps them win in the gambling game, especially in the dice game or the other gambling game based on luck. You can follow the pattern, but you can not follow that for a long time because the pattern will change somehow, and if that is happening and you do not know how to anticipate it, that will be a matter of time before you lose your money. But you can try to make calculations or notes or something like to increase your chance to win in gambling games, but be careful, the losing money is only just waiting for the time.