The markets like btc gold and sp500 is like hope for many people but they will cry they will lose all.
A LOT markets will be out of order and errors so you can't even sell or buy.
People have hope that times are hard they can make at least money with investing trading but little to do they know the markets will crash and a lot long positions will be wiped out also a lot oil gold long leverage positions Will be wiped off.
A LOT people Will lose and get lesson from the markets
To be honest, it seems to me that this happens in all such phases of the market, when everything is going up, people who understand the market sell, and people who never wanted to learn something deeper enter the market and simply lose money.