Dude, appreciate your intentions but that comment is almost certainly libelous. Fraudulent misrepresentation has a specific statutory meaning in England and the conduct you refer to doesn't rise to it.
I loathe fraud and find the 'trading education' industry dubious at best, but don't see anything out of the ordinary here and certainly nothing to assume illegality.
Plenty of high net worth folks sink seven figures in hobby businesses, often fatally flawed ones - restaurants being particularly popular. If a money-losing restaurateur wants to sell cookery courses by all means point out the facts - they didn't make their business profitable - but without actual evidence of wrongdoing calling fraud is a step too far.