It's a place holder or a left over from an scrapped mechanic, so either something goes in and it's needed or it eventually comes out of the menu. Who knows.
I'm not sure but is it the same option or separate that will make npcs run to another npcs in some scenes "I'm looking for...."? Could just be same stuff slapped onto all npcs even when they don't have use for it. It's kinda mocking when you indeed do want to ask a question.