Even if everything they do today is intentional and quantitatively optimal (color me skeptical), the site is still changing as the world changes and their user/

Even if everything they do today is intentional and quantitatively optimal (color me skeptical), the site is still changing as the world changes and their user/"product" characteristics change. The intentional things they do tomorrow will be different and may address issues like users becoming apprehensive about interacting when it's not clear who will get an e-mail saying "Psst... Hey... We thought you should judge what User has been up to..."