> The more someone is making at their solo business, the less they want to blab about it and attract competitors.
Exactly! And this is why every time I see someone selling a course while bragging about making a lot of money, I know for sure they are _not_ making money.
"It is inconceivable that anyone will divulge a truly effective get-rich scheme for the price of a book. There is ample opportunity to use wealth in this world, and neither I nor my friends, nor anyone else I have ever met, has so much of it that they are interested in putting themselves at a disadvantage by sharing their secrets."
Victor Niederhoffer, The Education of a Speculator
Well you never know, maybe selling the course is the profitable part?
I’ve seen people bragging about making a lot of money selling a course about selling courses. That somehow felt honest.