Pronunciation: (di-bungk'), [key]
to expose or excoriate (a claim, assertion, sentiment, etc.) as being pretentious, false, or exaggerated: to debunk advertising slogans.
So... Nancy and the Zetaculters by using the word "debunker" to refer to anyone that disagrees with them are in fact giving credence to the position that their claims ARE in fact pretentious, false or exaggerated.
By calling every dissenting voice a debunker... she is using the term correctly (it IS bunk), but that is not the word that she really would want to use is it...?
Oh never mind... I give up.
I never wanted to do this for a living you know... all my life I wanted to be... A LUMBERJACK!