This is not new on this trading discussion. We all the time warn people to trade with the amount of money that they can afford to lose. I have posted many times before on the trading discussion on this forum about how 85% or more of traders that are losing. There is nothing new about this.
Trading is for everyone but then only those who devoted their time could have that winning part of the trading, and yes there have been series of discussions and warning about people trading with the amount they could afford to lose than going that extent with the amount they can't accept losing, and yes we know that it's also very tempting and when risk management aren't applied it's that easier for people to keep losing their hand earned money into trading.