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.