Almost everything here reviews a marketing product, and the reviews were written to rank for people searching a product name alongside the word scam. Knowing that changes how you read them, because the format exists to catch somebody already halfway to buying.
The most useful post covers buying traffic. It states clearly that purchased visitors are not enough on their own and that you still have to do something with them once they arrive, which is exactly the step people skip when they pay for a shortcut.
There is a plain answer to how a website earns anything at all, running through referral schemes and advertising and staying honest that what you can expect depends on how much you have published and how many people come.
An unrelated post on erectile dysfunction in older men sits among the marketing material.
Read the buying traffic post before you spend anything, and treat every product review as an affiliate recommendation.