Main reason I avoided the comments strategy was I felt it'd get lost in the sea and then people wouldn't know what the author's post is all about.
It is usually best to write a short blog post about the product and post it as a link and add a comment explaining that you are the author. It is not necessary, we would have guessed that you are probably the author, but it's a nice detail.
Reading all the thread again, for someone like me that didn't know about the "Miracle Fruit", the name of the company "Miracle Nutrition" sounds like snake oil sold by an informercial at 3am. (I think I just ignored it the first time I read the post.) If you make a web page or blog, you should explain the origin of the name and some references to the use of the fruit.