There are also those gamblers who believe that by placing bets where they have 90% winning chance or more means it's a safe bet. Moreover, there was a common belief in dice games when the first platforms were launched that if you started with 1 satoshi base bet and set an automatic bot to play for you applying martingale strategy, it was possible to make passive income from online gambling.
Many people tried the method back then thinking it was legit, and ended losing decent bankrolls just to make 1 satoshis profit per bet... And even after losing it was hard to understand why it happened that way, since it looked impossible to lose 20 times in a row, for an example.
As the industry evolves, old misunderstandings look dumb, but new false beliefs start being developed and adopted by gamblers. It's a never ending cycle.
However a game likes like doesn't gives the end results, this is why it's called gambling, you can't be so sure that one side will win until the game is over, stupid people are the ones trusting anything that's based on prediction, even if the trusted team or side is much stronger anything can still happen that will prevent them from winning.
Sometimes been smart isn't about inventing something the world haven't seen before, sometimes been smart is just having common sense, gambling has already described itself, when something is based on probability it's beyond your might, you have to prepare for positive and negative sides, risk only what you can afford to use.