The new closed-as-duplicate banner says:
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
I think it should instead say
— to discourage re-re-asking the same question. (I also changed "those answers", which has no plural antecedent, to "answers there", which doesn't need one.)
As of September 19, 2013, the original text quoted above has returned here.