Privacy in blockchain is one of the wonderful reasons why many people fell in love with the blockchain industry and decided to invest their time and/or resources into it because they want a kind of investment they can make without revealing their true identity or their whole identity for privacy reasons best known to the person....
This privacy features of many cryptos have made many people to find it reliable and safer and be able to prevent their identity from scammers or evil perpetrators who might attack them....
But the problem now is that some criminals are now taking advantage of the same privacy features that the blockchain offers....,recently I was reading a news about a politician who stole some money,after stealing the money he decided to use it to aquire some bitcoins as a way of keeping the money away from the eyes of the authorities who are already watching his banking transactions and waiting to nail him,so it means that the criminals are now trying to use the privacy features to their own advantage by using cryptos to store their stolen wealth
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Now my question is this,is the privacy feature of the blockchain industry a blessing or a curse??what can be done to stop criminals from taking advantage of it??can it be really stopped or one should just let it remain that way and just leave the blockchain to be used by the criminals??I want to hear opinion from everyone....including 
