Unfortunately, scam can not be defeated. It has long existed in different fields. So it's hard to fight on the crypto market if no other solutions have been found. It is sad that many beginners or less informed people become the victims of these individuals. In the future, however, there should be more involvement on the part of all for the detection and removal of SCAM projects.
Yeah you are right and like hackers, scammers are also a big problem for new investors. When an investor is being scams, he would never believe in crypto for the rest of his life and will also tell other that cryptocurrency investment is totally fraud and this is also a Ponzi scheme like so many others. Although he is not right by doing this but it is a fact.