~ There is still a free trial to see if the op is really good at it. I think the op isn't selling a kind of e-book or pdf but he clearly mentioned that he was a coach so I expect that the lesson that we will be getting are delivered in real time. This is a proof that no stealing is involved in here.
I personally don't think OP was aimed at stealing someone's money, but spending your time on some useless courses is what we don't need too, right? Then, also, the following can happen: you learn a technique, you win with it, and thinking it's working you pay for the courses, while in fact you were winning just because of luck, and the technique you've learned simply works like any other, it works until it doesn't.
I don't think OP is forcing anyone to get coached. As long as escrow service still exist on the forum then one can take advantage of it. No technique in gambling is good enough to promise a consistent win but there are techniques that are designed to improve and limit losses. As long as the lesson is been delivered in real time OP deserves a chance to express and impact.