if tokens don't get a boost from the team, they will disappear over time. because tokens or coins that are difficult to develop naturally will become dead coins and no one wants to invest with them. but it is true that in 2018 many projects that gave birth to tokens or shitcoin.
That's true and it's just the matter of time. Crypto is about a competition for the platform that was giving a fully working product and it will be alive. But it's also important to delist the shitcoin to help the newcomers from those shitty coins. Useless coin must be removed from the market and i hope that will be happene when there was a rule for exchange site to delist it when it was become shitty coin.