Great advice, but most people take advantage of the DeFi hype for quick profit. Therefore, many people are still interested in new projects. Even though they know the huge risk of investing in such a system, people will still do it.
Fast profits can only be obtained by those who invested in the beginning of the Hype DeFi, after that it no longer exists, even for now there are already some investors who have lost through investing in the DeFi project.