I don't have much money to become contrarian like that. Buy when the price drops sharply is too risky. My strategy for now is buy when the price start to go up so if I do it then it will contribute to the increasing price of bitcoin.
Buying in low is most commonly practiced by everyone, but of course, we only used that strategy to a potential coin knowing that it will rise back in a while.
It will work well and it gives us more profit compared to buying coins at the start of recovery(as you've said), in fact, the risk will be that high instead.
We need to be wise and do smart things cause this is the only way we could generate more profits.