Actually, that is a bit of a silly comment because Bitcoin is anonymous and it does promote itself as such all over the place both formally and informally.

Just try discovering the identities of the last 4 years of bitcoin thieves from purely blockchain information if you don't think so.

The monetary property of cash (electronic or otherwise) which mitigates the ability to trace identities using information gleaned from outside the blockchain is called fungibility and even Gavin Andresen could not argue with the fact that Dash improves on bitcoin's fungibility by an order of magnitude without compromising any of its other monetary properties.