I agree with a lot of what you wrote, such as the criticisms of it "being all in your head" or "you're just not trying hard enough" or "there is a simple cure that cures all people who stutter" are all invalid. But I have some constructive criticism...all of which hinges on what you mean by the word 'cure'. If you mean a quick fix or a method that will help everyone attain near perfect fluency, then I would agree with you there is no 'cure'. But if you mean that people have not overcome their stutter and no longer struggle with disfluency, then I hard disagree. My dad is one such example, He had a pretty severe stutter as a kid and was bullied relentlessly for it. He put in a hell of a lot of work and no longer stutters, except very minor dysfluency on rare occasions. This is sorta a red flag for me >The fact you have to pull out your stutter like a credit card to gain the approval and use it as a fact is already a red flag to me. My good faith reading of this is that you don't want to get scammed so your bullshit detector is up. But It means you'll be apt to never believe that it's possible for some people to achieve fluency, Because anyone who no longer stutters will obviously start out by saying they had a stutter in the past. And please don't assume I mean that anyone can achieve fluency. I don't think that. I do know some people have put in a ton of hard work and got no results, where others have put in the same amount of work and did get the results.