I often see a situation where the team announces on the forum that this coin is already traded on the exchange. But when I go to an unknown cryptocurrency exchange, I see that the coin is really traded, but its average daily turnover is only 10 dollars. Therefore, you need to check all the statements of the project team.
They can easily be listed at shit exchanges without any listing fees. So we need to carefully check all the projects listed at the exchange, if they are not listed at the big exchange then we should ignore them.