maybe everyone already knows all of your suggestions, but in the crypto world anything can happen and cannot be predicted,
research must continue to be done and I think there will be ways of scammers to cheat in the future.
Fraud methods aren't new, but they are always improving with trends. Defi projects are the main direction where scammers aim to trick you, people's greed is too great when they see defi projects skyrocketing, wary of ourselves.