This is something I believe happens a lot, where they only show 1 profit but they don't show the many failures they feel. Finally they open some kind of VIP class or group and reap a lot of profits from there and don't care about their members. Logically, if we think then when they have become skilled traders, then they don't need to bother to get money from the class. Yes they hide behind their knowledge, but to me that doesn't make sense. There may be many opinions that differ from mine and I'm sure there are many who think the same.
I know someone who are actively trades in Forex and joined several VIP classes, he always talks and try to compare how promising it is compared to stock market and cryptocurrency. He often talks about some people who opened a paid class and how amazing they are. However, I have been questioning him the same question "if they are so great at daytrade and their profit is really that amazing, why trouble themself with opening a class which do not give them as much profits as when they showoff their portfolio?".
And his answer is hilarious, he replied "because these (so called) master want to do something good and educate people."
Yeah, in our times, we, and nobody, would believe in such a thing.
But I hope this person of yours will reap the most of these courses. Even if they were not in profit in the end, it would still be an experience.
And it cannot be bought.