Honestly speaking Blockchain fraudsters or Crypto-currency fraudsters can't be completely stopped what we. An and should do is limit the success of fhei activity. I hear lots of people saying to non enthusiasts that Crypto is completely safe this alone can make many insensitive of the dangers, we can start by putting into our words to new guys that Crypto-currency also poses scammers problem
Indeed, there is no way to stop the fraudsters completely and permanently. And no way to limit the activity of the fraudsters, they will always do their activities to scam/trap people as long as there is an opportunity to steal people's assets/money. Crypto world is a very high risk, including the risk of being scammed by fraudsters. Only people who don't know crypto world who said crypto is a safe place, experienced people must understand the danger of fraudsters. There were too many cases of scams/frauds happening in crypto world.