That is true but Steem provides the ability to be used entirely anonymously, or at least with tremendous amounts of obfuscation if steps are taken.

For example, (1) exchange Steem for another alt-coin on Shapeshift, (2) move the alt-coin around and through different addresses and perhaps even alt-coins and (3) eventually convert back into Steem associated with your 'ghost account' that you access only through TOR.

Pretty easy actually. And it will probably only get easier as more financial innovation takes place like ring singatures, confidential transactions, Z-cash, etc. to create truly anonymous digital cash.