*There were no Australian arrests, however the indictment pointed to funds funnelled through that operation that were sourced from Australia via Western Union.*
Ladies and gentlemen, this is how you get arrested!
That's one incident involving the DEA.. however the linked media release states:
The warning follows the recent arrest of a Melbourne man who allegedly imported narcotics into Australia via Silk Road. The man was charged with 10 offences relating to the importation, trafficking and possession of narcotics and prohibited weapons.