~snip~
Thought, even though what you say is true, I believe you are over-estimating the ability for people to say something is legitimate or not, even if there are people out there who are quite skeptical of what they see on the internet, gullible people continue to be the majority on the internet, otherwise scammers would not have it as easy to get money out their victims.
Also, sharing or posting predictions on the internet is not a safe way to verify anything nowadays. All a scammer has to do is to create a lot of social Media accounts (on Instagram/ Twitter), let us say he creates 100 accounts... He would start using the half of the accounts to predict a game in favor of a team, and the opposite half for the other team, next time the does the same with the remaining 50 accounts which got the prediction right and do that again and again.
By the end of this prediction scheme he could easily have 2 accounts of twitter/Instagram which have a register of 100% accuracy and other with less accuracy, in the eyes of the followers, those are betting geniuses and would be willing to pay for their tips.
So do not even trust those registers.
What people get is different, so we can only see it without knowing the truth. But many people have been deceived by words encouraging them to make money easily. And from what I see on the internet, many attractive offers like that deceive many people.
Fraudsters will use many methods to get more victims, and the methods you provide are one of the many methods they may have used. We won't know which is a fraud and which is genuine because the difference is almost non-existent. And just check and find out more information to be sure. That is why we must always be careful when we get information like that and confirm it first.
Getting lots of social media is still very easy nowadays, especially since you can buy all the accounts through people who deliberately create lots of accounts. And when it's on the internet, we can only check so we can be careful in deciding whether to follow someone who is an expert or whether he will lie.
~snip~
It is very easy for people to claim that they are experts in gambling by providing evidence, but this evidence does not necessarily mean it is true because it could be that the evidence is just manipulation and perhaps the aim is only to attract people to gamble the same as them. If he is truly an expert, he is certain has become a billionaire and may take gambling lightly, but in fact if he is still the same as people in general and is not too rich, it means he is not an expert, because usually people who are truly experts or people who are truly professionals have abundant wealth and as far as I know there are none who can match the wealth of the casino owner and I think the casino has limited this person from winning so I don't believe in a gambling expert if he doesn't really show the results directly and not just 1 result.
maybe if it was a friend of his who was told about the bet he had predicted, his friend would try to follow it, maybe with a little money to test his success. But if in the end he lost, of course that person couldn't be trusted anymore because he really showed how stupid he was depends on chance whose victory is not necessarily certain.
In obtaining evidence, people can easily search for it, get it, and show it to other people, especially on the internet, who can easily manipulate this data. But if he is truly an expert, he doesn't need that proof but will give and show his abilities to some of his closest friends, who will later show it to other people. Someone who is an expert will not easily show that he is a gambling expert, but he will hide it and probably only show it to those close to him. Those of us who know that he is an expert also can't ask for his predictions because he probably won't want to give them because that means he has a responsibility to give accurate predictions while he doesn't want to.
If someone is an expert and gives his predictions to those closest to him, he will show that he has better analytical skills. But he didn't want to show his abilities to many people. He doesn't want to be dependent on people who just want to ask for his predictions.