If it's accurate as someone has stated that there are 1000 members, $200/member/month x 1000 members = $200,000/month = $2.4 million/year. Sounds pretty lucrative to me.
My comments below are limited to trading stock index futures.
Most people who claim to be "successful traders" are only marginally so. That is, they've learned enough to stay out of the market most of the time and participate when they recognize a low risk situation using "set ups". This is a beginner's modus and is in fact quite useful. It becomes limiting when the person focuses solely on compounding his trading size rather than increasing the duration of his participation which requires advancing beyond a beginner's understanding of how markets work. This is like the club chessplayer who has been playing for 30 years yet his rating still hovers around 1900--good enough to beat most people but not an expert. He's memorized his openings fairly well, knows the basic endings, and has decent tactical skill. Thus, in familiar positions he's quite effective; in unfamiliar positions, he's lost because he lacks a complete positional understanding of the game.
The "trading educators" I've observed fall into this class. Their monitoring displays in their videos are revealing of this fact, regardless of how much "size" they trade. At their marginal skill level, it wouldn't be surprising to see them go through a losing streak of trades given the pressure to perform for an audience. (Who wants to pay to see someone sitting on his hands most of the time?) The truth to them is that "drawdowns" are an inevitable part of trading. It therefore makes perfect sense to maximize their extraction from the large pool of money seeking "trading education." Judging by the various number of players in the industry--psychologists, coaches, trainers, system sellers, etc.--that pool must be very large indeed.
Expert traders have little incentive to sell anything. They are very, very rare, however. Almost no one has met one. There are even people who run stock trading prop shops who deny they exist. No doubt, they do not run chat rooms.