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
It seems to beginners in the crypto market that almost all projects have a good potential and can solve important problems of society. But you need to understand - only a few cryptocurrencies can survive. Therefore, to treat the appropriate choice should be especially careful. I completely agree with the rest of your advice.
If track all the existing coins right now, it surely more of them will stay on the dark and investors won't see its potentiality. Hypes is very influential into the market price but I believe it could be just a trap for greedy persons and will end up for losing. Hypes never stay for long and a big drop came after, that is why we should particularly prefer for it.