i don't have any names in my head, but i'm sure there are a lot of useless tokens out there that are intentionally launched with no purpose other than to collect people's funds and then disappear. these tokens have no underlying, are very volatile, and are based solely on speculation. but even so, people still buy these tokens in the hope that they can get high returns from it.. and unfortunately 99% of tokens like this usually end up being scams and cause big losses to their buyers.
It seems to me that the most terrible are the hacking of exchanges. Imagine how much money people have lost due to hacking or bankruptcy of exchanges and they still can't get their money back.
