Thanks for giving this reference OP. It's a great thing to ponder about and it just shows how much a lot of people have rode the hype and probably made a plan to create something that hopefully would stick. It's just that all around the world, the ones that would stay are the ones who have a lot of backing and maybe the most unique way. I do hope that there will be a way to determine what cryptocurrency will stay.
It's important to note as well that a coin could have failed but it might not be a scam it is still important to be vigilant
There are some or maybe most of the token founders who just want to make a profit and steal as much money as possible from investors. Some founders don't have long-term targets. They are the same as a Ponzi project in that they only want to deal in their tokens when the market still provides a reasonable price. That's why I think the old tokens that are able to survive are those that really have the ambition to become leaders in the crypto market with the various innovations they have made.