On Mon, Dec 3, 2012 at 10:30 AM, Mike Hearn wrote: > Second thing, it's best to carefully separate "anonymity" from > "privacy". Privacy is supposed to be a feature of the system (it says > so in Satoshis paper) because people demand it. If I loan a tenner to > my friend and he is able to find out what I earned last month, then > that trade was neither anonymous nor private. In this case I want > privacy but anonymity isn't useful. Mixing up anonymity with privacy > is not only a public relations problem, but can lead to confusion from > users when they, eg, try and buy Bitcoins from an exchange and are > asked to provide ID proofs. I would like to second this point...privacy is essential because the market demands it. If Bitcoin doesn't do it well (and I would argue that it doesn't today), then eventually a competitor to Bitcoin will do it better and that would be the beginning of the end for Bitcoin. Debates about whether it was or wasn't a core feature are pointless.