Using the new Dupehammer (name subject to change?), I closed a question which was on the Close Votes review queue: How can I call my c# functions from an external js file
The question already had two close votes and I've added mine as the third.
The close message says:
marked as duplicate by Kobi 5 mins ago
I think it should specify all users who voted:
marked as duplicate by Jane, Jack, Kobi 5 mins ago
This is the case for moderators, for example CSS "::" meaning :
marked as duplicate by Jukka K. Korpela, BoltClock♦ Feb 6 '13 at 7:26
I think it looks better when more than a single user closes a question. It is also important to give credit to the person who found the duplicate, and other people who voted.