The crash will teach alot of people a bitter lesson and they will learn from it,
they will learn the following
1. Never to love a coin
2. Never to be greedy
3. To cashout on profit always
4. To stop following hype
5. To know that what goes up must come down etc
i agree thats what i also learn during those crash in short term trading
but its not suitable for every coin if you are planning to hold it for long term