There have been many questions on SO that are subjective, yet not argumentative. Questions which were clearly stated (and thus, should not have been closed as "not a real question"), and yet questions which could only have been answered by an indefinite amount of discussion.
I propose adding a new close reason that would permit such questions to be closed, simply because they are "discussion" questions and thus not appropriate for a Q&A site.
The verbiage for the "Subjective and Argumentative" close reason used to include "or would require extensive discussion". I agree with removing that part of the close reason, but thi nk it should be moved separately into this new close reason.