It is increasingly common for bioethicists to consult with the public to solicit their judgments and attitudes about ethical questions and issues, especially ones that arise with new and emerging technologies. However, it is not always clear what the purpose of this engagement is or ought to be: do bioethicists seek the input of the public to help them arrive at a morally correct justified policy position, or do they seek this input to help them shape and frame their already-established (...) moral position, or something else entirely? In this essay, we discuss four distinct possible functions of collecting moral judgments from the public: issue spotting, messaging for adherence and social stability, substantive moral guidance, and procedural fairness. For each function, we offer core examples from the literature before discussing the strengths and weaknesses attendant to each. We conclude with several preliminary questions bioethicists can ask themselves to clarify their own purpose for soliciting moral judgments from the public. (shrink)