Quote from: random0 on July 27, 2012, 12:43 pmForcing an exchanger like Intersango to hand over logs will only yield random people who bought BTC and the random things they have bought.Coins sold for SR users will be most likely spent on drugs, and the coins will lead to SR vendors. Selling BTC solely for SR users is still a good way to harvest mass amounts of vendors addresses, just by tracing the coins, while they exploring the sytem, establishing trust etc.Tinfoil hat time! Surely all a vendor has to do is to create a new SR account from which to contact the BTC trader and there'd be no way to link the postal address at which they receive the cash to a particular seller's id? I know this because this is the system I have in place - I know that several of my clients selling me Bitcoins are major vendors on here; I might also assume they're based in the same country where they receive the cash (although this is an assumption) but what good would it do me if I were a cop? Buying and selling Bitcoins is still perfectly legal and it still tells me absolutely nothing about who my clients are- indeed I encourage them to have money sent to an address not connected with any illicit activities, do you see the problem?As for examining SR's logs only revealing people who have bought Bitcoins, I am sure you're not naive enough to think that the majority of buyers are doing so to invest on the stock exchange and buy T-shirts? :-DV.