Altcoins, in fact, the whole cryptocurrency with the exception of Bitcoin. How can you say that they are all useless? A small part of them, of course fraudulent and useless, but the rest, their much more, make their own contribution to the development of cryptocurrency. In addition, many coins, and especially tokens, continue to develop and the result of their development can sometimes appear only after years. Therefore, we do not need to hurry with bad conclusions regarding altcoins.