That there's no lessons to learn, because doing the same thing again wouldn't work. And if even the person who succeeded first hand would fail to reproduce their own success a second time, then those who are just reading about it have even less of a chance to be successful with that advice.
I think that's interesting to explore. I do wonder if it's true or not. There does exist some serial entrepreneurs that did manage to bootstrap many successful business after all.
Also I think the OP is more annoyed at the constant publication about "how I achieved financial success", because it kinds of gives out this illusion to others that they can as well, or that this is the ultimate achievement in life.