Of course, There has to be some kind of criteria. But this largely depends. It differs per person. Some just buys anything that is - % down in a specific time period. However, everyone always want to buy low and sell high ( that's the goal anyway). But it doesn't have to be a clear cut. You don't have to wait till a token is at a specific price before you buy. You would be leaving more money on the table this way. In my experience, Its best to decide what determines your trading moves.
yes that was me , i do only have 1 criteria when buying and that is if when the coin drops at x amount . im not really an expert at trading so that could be the reason while others that are experts do have a diferent critieria because they are perfectionist or ambitious about what they are doing .
the goal is to buy low and sell high but everyone does not buy easily but we do all have our different criterias for judging the dip .
