A significant part of the tokens are now really useless, but I don't see this as a big problem for the cryptocurrency market. Everyone is allowed to create coins and tokens. Moreover, the creation of a new token through an ICO sometimes brings the team millions of dollars. Of course, this attracts a large number of people who abuse this right. It also does some damage to the image of the cryptocurrency in general. However, over time, the market itself will discard everything useless. Therefore, you don't even need to try to study the entire cryptocurrency market. It is enough to focus only on a few dozen of the most promising ones.