Most players need to prepare to do the analysis. Self-proclaimed experts fake those wins for marketing purposes, and naive people easily fall for such a trick. Nobody will align with an expert who doesn't promote fake winning slips. It's a con method to take up people's money. Apparently, it's the only way to win through gambling, offering prediction services to gamblers.
Yes, this is a fraudulent method that relies on an unusual strategy, or what I mean is that people who claim to be experts make the lure of victory something that will attract the attention of gamblers with sweet promises that everything that gamblers hope for can come true when they use the signals or predictions offered.
Those promises' sweet syndrome on players enables them to pay without calculating. In times of loss, the player would blame himself rather than the channel owner. Some people would come right after the game to share photos of their slips, showing how they won. And they are thanking the admin for his help. All those familiarities are social engineering to get people to try again. Maybe they needed to get it right. Gambling, perhaps, becomes more difficult for players who patronize such services. The con expert does not influence the player's journey.
W
Being someone who have gotten myself involved in such activity before, I can perfectly understand what you have said, and it's the simple truth..
There have been a time when I joined a certain betting channel/group on telegram, I monitored the group for a while and saw that several users were always posting screenshot of huge wins, sometimes in numbers as large as hundreds of thousands of dollars, and claim they started betting on that admn's calls with a mere $10 or $15, and was able to grow it to that tens of thousands, and hundreds of thousands of dollars within a space of few months, or few years.
At a point, I got convinced and decided to try the calls since they were for free, the admin does not charge for his calls, I started betting on the calls, I won some, lost most, I continued and after 1 months, I decided to make a complete accessment of wins and loses, I discovered I had lost way more money than I had won, that is when I stopped.
Betting is best if you are researching and taking decisions on your own, this way, you know you are solely responsible for your losses or wins.