Trading is very very complex, if not carefully followed with caution it may lead to An uncontrollable addiction that sometimes have consequences like that of Gambling.
From his story it seems like he traded without adequate knowledge, self control and with Greed.
I can't see why a content creator that has amassed a good amount of money would still trade like a greedy trader.
Well nevertheless if it is really true, then I hope he learnt some lessons.
Learning trading is about 80% from experience, infact trading is the definition of experience is the best teacher, that's why is good to back test and an practice in a demo account so you dont need to get those experience from your real money.