Quote from: DwarfSeeker on May 29, 2012, 09:39 pmgood question, i've asked before why SR doesnt expire addresses and permantly 'wipe' them.. making the trail harder to follow..They could do so but it wouldn't do an awful lot of good. The Bitcoin block chain contains a record of every transaction. Bitcoins must be sent from the same BTC address from which they're received so in the nature of things even if only one BTC address can be linked to a person's identity it is possible to track any coins which have been sent to and from that particular address.As such if LEO ever did hammer down SR's doors, a single address would be enough. In addition if addresses (and their corresponding private keys) were deleted each time, if anyone sent BTC to one of your previous address you'd be unable to retrieve them.On the plus side SR's servers are hosted anonymously and each wallet has a built in "mixer" which swaps your coins around with those of other users, reducing the likelihood of your transaction history being traced.One point that I should clear up for the OP : the Bitcoin block chain does not store your IP address, however if you were to have Bitcoins sent to an online wallet and accessed it using your real IP address it may be possible to associate you with a particular BTC address.Hope this clears things up.V.