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.

The big difference between the hacking of exchanges and the fraudulent ICO of coins is the different mentality people have when comes to exchanges and ICOs.
There are people who deposit and keep their money in exchanges as if they were banks, and usually use stable coins to do so, in that sense, those holders are not seeking for speculations or excessive risks, in order to turn it all into a profit. It is completely different with ICOs and useless tokens, those who participate and buy those just see the potencial profits they could have in the future and do not pay attention to the use case of the token/project and whether there is actually enough liquidity to support the market of the token in the long term.