Bitcoin allows money to be sent anonymously across a peer-to-peer global network, with no intermediaries needed to validate or process transactions. That has made it attractive to those who want to keep their identity secret, including those buying and selling illegal goods and services on the internet.
yes indeed many advantages of bitcoin that allows us to transact and as others. but with the many advantages of bitcoin such as buying or selling services illegally and laundering money is very unfortunate if such advantages are used as such. as a sword we must be wise in using bitcoin let alone technology that is growing nowadays.