Was wondering if there is a way to see the specific subjects that "star" in SO.
I believe number of duplicates of a specific question can give good insight.
Is there such a statistic and if there is is, is it public?
Did you know about the SE data explorer? If you know SQL, perhaps you can compose a query for this. If not, you can always search for an existing one.
I've found a query that is probably closely related to what you want. It gives the number of duplicates per question.
A more simple way to do your research is to use the search bar and giving in some advanced parameters like
views:100000 score:100 (at least 100k views with a score of 100 or more).