This description is about avoiding get-rich-quick schemes. Get-rich-quick schemes are often too good to be true and can be a waste of time and money. They may promise quick and easy money, but often involve taking risks that can lead to financial losses. It is best
From Wikipedia
A get-rich-quick scheme is an offer, plan, or purported business opportunity that promises unusually large profits or rapid wealth for little investment, effort, skill, or risk. The term is commonly used as a broad label for deceptive or fraudulent investment, work-at-home, and other money-making offers.