When one votes to close a question as being a duplicate, a comment is automatically added of the form
possible duplicate of Other Question Here
I guess it's good that something appears, but the capitalization and punctuation should really be fixed.
I think the "possible" should be removed as well. If one is voting to close a question on this basis, it makes sense to make a stand and declare that the question is a duplicate. I see no need for weasel words here.