If the altcoin price dump, I would try to buy more very cheap so when the market start growing I make profit.
But I will analyse the one with potential, good product and a strong community, team as well.
if the price of Altcoin in the waste will be a lot of people who are sad because the price of altcoin in the waste then from the dispose of the price Altcoin will be many people who buy Altcoin with low prices and can hold it and wait until the price of altcoin back up and could benefit again
When altcoin dump think that this is our opportunity to buy more while we can buy in the lowest price. Don't waste this chance to buy a lot of altcoin because anytime the price of many coin will increase and maybe you felt regret if you are not buy at the lowest price.