Defi like pump and dump game.
And it's also very similar with a gambling as when someone was investing in the bad defi and he will always be scammed by the scam defi. Gambling in the defi project is a very high risk decision.
People should have experienced with the smartcontract, how to analyze the fundamental and various things involved to be able discover the legit defi.
It's a pump and dump scheme while sometimes it can be ended as a scam.