One of the most annoying things about these kinds of posts is they always show revenue and never profits. I can buy something at $1m and sell it for $1m everyday and generate $1m in daily revenue but with no profits. Operating cost on these kind of businesses seem like they can add up quickly not to mention the time and effort.
That being said OP doesn't seem to be selling some sort of course on how to get a lambo in just three months, so I don't think he is being malicious. In fact the article seemed to be very well written from my skimming. Its just something I think people should keep in mind.