I would say Defi projects was make a lot of new investors loss their money and make the market bleeding again so soon as the hype of Defi will attract a lot of scammer to make a scam project that lead to new investors losing their money and what most surprises even Binance do list scam project in their exchange.
Hello, work hard, it seems you need a deeper understanding of DeFi, because basically DeFi is not a scam so the Binance exchange wants to accept DeFi tokens to be placed on their list, and once the DeFi trend rises, scammers take advantage of this condition to create fraudulent projects that on behalf of DeFi, thus giving birth to DeFi tokens that are scam as you say, meaning that not all DeFi tokens are scam, so if you consider all DeFi tokens a scam, I think you are wrong in this regard.