Highly recommended reading if you are ever tempted to take advantage of an apparent scam in progress: David Maurer's
The Big Con, the hundred-year-old story of swindlers who stole tons of money by setting up fake stock scams, then luring bystanders into placing side bets on the scams-in-progress.
(This is the book that inspired the 1973 movie The Sting, but it's nonfiction.)
People still fall for the classic cons. Don't be one of those people.