I don't remember anybody saying these junks aren't going to be traded. After all scams will always find their victims. They just change tactics and sometimes get more complicated with a prettier front making it harder to detect the scam underneath. I remember the early days one of the most popular scams were "bitcoin doublers", they started by convincing newbies that they had "found a way" to double their coins in 24 hours if they sent them their coins. Eventually it became a thing where they no longer claimed to have any kind of magical exploit in the protocol and just came out with it and said it is a Ponzi scheme and people still sent them their coins!