I think right now the use of bitcoin is mostly used for something natural, although there are some people who use this opportunity to commit crime using bitcoin, such as buying drugs, and other types of illegal crimes. this is indeed one of the shortcomings of bitcoin, the person do this because bitcoin transactions are anonymous in which we can not know who is doing the transaction so they feel safe because the police will be very difficult to find them. but I think there are many positive things that can I do with bitcoin and I am trying not to commit a crime with my bitcoin.