Do you really think you can build a successful business on high risk games?
I think anyone with the right fund and good management skill can build a successful business on a high risk games. We don't need to look elsewhere, just look at the gambling board of this forum. There are lots of platform that are build on high-risk games and they are profiting. To name some of these businesses are Livecasino, Stake, Robet, Duelbits, and many more.
I think this guy just got lucky and used that chance to improve his life instead of losing money at another casino. Nobody knows when his luck will run out and what it could lead to. Also, as professional players say, over time they start to get pinched by gambling sites, so it becomes more and more difficult to win.
I also think that the guy got lucky or probably had a proven good winning streak on his gambling engagement, reason why OP's friend established a gambling lecture platform to share his techniques on how to be successful in gambling. Though I doubt that it will work 100% but still, I guess @OP's friend strategy is effective since @OP's friend is confident enough to invite OP to his gambling teaching platform.
It is definitely risky but there are many people that live their lives not knowing how much money they are going to earn next month and they are fine with a life like that.
True, to name some of those people, we have scavengers, vendors, and freelancers. They never know what would be their next month's earnings, even the contracting company doesn't know what will be their income after they are done with their current contract
I have to confess that such a life is not really for me since despite being in a decent financial position I am always worrying about the future, and I am sure that I would be unable to deal with that kind of uncertainty, however not everyone is like me and there are many occupations which require accepting such a thing, as it is the case of trading for example.
It is always good to have an assurance of our next income. It will make our minds at peace but there are unfortunate individual that doesn't have a fixed monthly income so they have to rely on the opportunity if it was given to them.
Gambling is gambling, if anyone is able to predict how much they will make out of gambling by so so year and it happened then they have their ways around it.
1. There is a chance that he is cheating the gambling system, because you can't be so sure of your outcome until it happened but in his case he said it before it happened.
That's supper suspicious
2. He is a rare lucky man, this is a very slim chance when gambling and this lucky doesn't always last longer.
3. He made a lot of money once or twice and use the fund well.
There are few cases of successful gambling that turn things around for good.
Or he had established his affiliate income which is highly likely because the guy has a tutorial platform on gambling. Or established a monthly subscription income. It is either the two or possibly both of them.