[taeric]

I take the other view. I actively blame some of the people that "invented" these methodologies.

Being introspective of your capabilities and your achievements is an extremely valuable skill that I wish more of us had. However, selling your capabilities and giving vague promises that it will help with development if you only followed these practices is a deceitful way to make some money off of your reputation.

Worse, many of them do this by attacking those that came before them, but then taking the stance that their "teachings" are above attack. And that anybody that isn't getting the same benefits they did just aren't applying themselves correctly.