So, if a strategy is being sold for games like poker and blackjack, then it's still a bit good, but on the other hand, I guess another question would be, what is the seller still goes ahead to sell same strategy to other gamblers as well, which i sure trust he or she will as long as it's money we are talking about, this also will completely destroy the whole strategy, so, in the end, we still discover that its a very foolish decision to pay for strategy to win games, be it luck dependent games or skill or knowledge dependent games, for luck dependent game has no other strategy of winning aside luck, and this i believe is also same for knowledge based games as well.
People who sell books that teach plebs about "winning" in gambling and/or sell videos and other forms of learning materials are probably not winners in the thing they teach as well. Or the thing they teach probably was profitable before, but stopped being that and the only way to make profit from it is to sell it.
The actual winners will never share their secrets.
You can sell a method on how to on other niches, industries, and interests but when it comes to gambling I don't think there are methods that you can sell that will guarantee winning or even a chance to beat the house those who know gambling and the facts associated with it will not fall to this kind of offer.
There's a thread here about a member who claims to be in profit in almost any casino and offers this service and members questioned this claim.
These gambling methods are just probability if they claim that they guarantee beating the house It is a dubious offer and should not be entertained, scammers know that people are looking to make money from gambling so they offer these so-called methods.
You are absolutely right, scammers are just riding on the ignorance of some newbie gamblers, and also on their greediness to scam them.
Like you rightly said, methods or strategies on how to be profitable in something in other niches or stuffs that is outside of gambling is completely very possible, like I remember I one time bought a strategy from some nigga I meet online, on how to buy things or goods extremely cheap from Aliexpress, have the goods sent to my where ever I live in the world absolutely free of charge, and also how to sell the same goods in my country at a very high price for maximum profit.
I bought this strategy, he actually documented the strategy in a pdf file, which after I read, I decided to try it, and amazingly, It did worked, I bought some items from Aliexpress at an incredible or laughable cheap prices, and not just this, the items were also shipped to my country for free without any dime paid as shipping fee, got it in my country and sold the same item at a really higher price, I did this for a while and made good money.
But overtime, the whole strategy stopped working because..
1. The nigga who sold to me also sold the same to alot other persons.
2. Those who bought and tried the strategy and it worked, in their greediness for more money, also engaged in reselling the strategy to alot of other persons, and overtime, alot of people learnt about that strategy and every one was importing items cheap from aliexpress, there were no longer buyers willing to pay as much as they used to pay because, they can easily buy and import same item for cheaper price from aliexpress.
The above is just my experiencial example of how strategies fail and fade away overtime in somethings outside of gambling, but then, in gambling, there are no working strategies at all, except in skill based games like I said before.