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I like the UI and the cleanliness of the Stack Exchange sites, but one thing that bugs me is the wording of the notification that something is a duplicate. I have had many questions closed because they are duplicates, but often, they aren't a true duplicate or an exact duplicate.
I'm not complaining about the looseness that questions get closed, I'm saying that the notification should be changed from "exact duplicate" to either "possible duplicate" or just "duplicate". The reason is because that is inaccurate. Questions that are exact duplicates should have the exact same question and the same answer. Saying that a question is closed as a duplicate would mean almost the same thing, but it wouldn't have a connotation that the question is exactly the same. Questions like these could be fixed with the wording of the notification and a bit of strictness on the reason to close as a duplicate.