Almost all business transactions are between people that know at least a little bit about each other. If Silk Road User A sends Silk Road Merchant B BTC for dru

Almost all business transactions are between people that know at least a little bit about each other. If Silk Road User A sends Silk Road Merchant B BTC for drugs, A has to give B a postal address to mail the drugs to. There is almost no such thing as two completely anonymous people in a financial transaction. There's always an email address, user name, a third party, or postal address to tie them. The only thing that I can think of is some type of charitable/political donation that is anonymous.