The problem is that these guys use pure hindsight to try to convince those watching that they make the right call every single time. People who sell courses typically do this. Someone like me who focuses on hindsight is usually doing so in backtesting.
I have no disagreement with you there and what you're saying goes without saying, of course. That part isn't even crossing my mind at all. My issue is everyone(literally everyone that's not an exaggeration in this case) always focuses on "people selling courses" ad nauseam. To me stealing peoples emotional capital, misleading them and being disingenuous just so you feed your ego or for whatever reason, is just as bad as people who sell courses, in some cases maybe even more damaging long term. Because than the new traders or people they are "helping" really get taken for a ride following their advice, when the people giving the advice either don't know or purposely hide how they got there or how they actually make money trading.