It fits my experience, the people I knew used coupons frequently where are all low income. One ended up having quite a large savings from compound interest and another got a healthy inheritance, but their jobs paid little.
I wonder if that was a lie too? :)
Successful exits usually are worth millions.
The point for criticism of unlikely claims online is that it is hard to know if made up, thereby kinda dubious as an justification for an acclaim of authority on a specific topic..