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
This is a good advice but nevertheless against the rules of HODLERS I don't think people will apply to the top coins in the market. I for one is a hodler and I love to HODL the top coins in the market like Ethereum and Bitcoin and will always not tempted to sell even if there are profit, we are looking for long term profit.