What they really should have done is check whether the user is an existing logged in Digg user, and only displayed the bar to those users. The bar is utterly ir

What they really should have done is check whether the user is an existing logged in Digg user, and only displayed the bar to those users. The bar is utterly irrelevant and intrusive for every other Internet user (this is without going into the ethics of what they're doing--just the interface/design decision they made).