Luna going from a market cap of close to 100 billion to basically worthless in a few days is like 50 Mt Gox incidents in terms of wealth destruction.
Bitcoin has market cap swings larger than the loss during Mt Gox in minutes these days.
Profits aren't real until you have to pay taxes on them.
It's a net zero game. Someone sells at 10, someone pays 10. But we still have the 10 in the game, they just moved.