I think it would be a worthwhile separation from Story Discussion and Feedback just as Lost Stories and Story Ideas are, even though it is more closely aligned with the Feedback component that the other two are, and Feedback would be strongly diminished if Recommendations was separated.
Not necessarily. If someone isn't recommending a story, but commenting on the value of the story, then it would fit into the "Story Discussions" framework, since it's not an actual recommendation but it's antithesis.
I was thinking more alone the lines of "Does anyone have any ... fill in the blank for genre ... stories I may have missed?" questions. Readers could post questions, requesting recommendations, and others could respond, including suggesting alternatives.
I think the "Story Discussions and Feedback" has started to lose the entire "Story Discussion" framework, as most entries are searching for story ideas rather than discussing story problems, alternate threads not taken or unexpected plot twists or plot holes (though the last two were never that common in the first place.