The question was asked and answered earlier: Is there anything to stop a Gold Tag person editing a tag to close any question they want? and the answer is "yes - only original tags on a question count for the dupe hammer".
I have a problem with that. A question such as this one is absolutely about Newtonian Mechanics - but OP only tagged it "rigid body dynamics". Had it been correctly tagged, I could have hammered it. As it is, I cannot - and the question lingers unnecessarily.
What does the community think - should the dupe hammer holder be permitted to edit in the tag, then close the question? It has a small potential for abuse - but a big potential for helping clean up the sites.
My preferred solution is not the one currently implemented. Would love to hear others' thoughts.