many fails in that research
EG
had sales of $1.2 billion, generating $80 million in commissions
so silk road was charging 15% commission?? really.. i have never been on silkroad but just looking at the 15% commission that these "researchers" propose DPR received seems a little .. wrong
secondly bitcoins. unless lost due to hardware failures or hoarded and never spent. will circle through many peoples hands. its not like a bank note that gets burned and a fresh serial numbered note appears as a replacement. once the coin is mined and in the system, its in the system forever. so of course coins from the earlier days will appear going through silk road. what they dont tell you is that it probably passed through 100+ different people before reaching a drug addict that needed silk roads services.