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.
Scammers will always there and this will be forever because the scammers were coming from the intention of someone to get the money easily by fooling others.
DYOR is a must and anyone must always try to do the best to analyze the scam project. This will prevent the scam project to scam them all.
There are bunch of scam projects right now, especially from the defi field. People must put DYOR as the priority.