The problem here is that, as there arose new strategies to combat online scams, scammers also build new counter strategies to continue with their illegal actions. The duty is on each of us to work towards securing our wallets and other assets. This is where education is very important.
As regard plagiarism, banning plagiarist and publishing it on the platform will scare those who have not been caught copying and pasting away.
No matter how careful someone is the person would always fall victim to scams if you lack knowledge