Recent posts about bumping questions by Community ♦ led me to the question:
Should questions with 0 score answers be in the Unanswered list, if those answers have a non-zero count of votes?
My thoughts is we need to distinguish posts with no upvotes ever and posts with votes and a net score of 0. E.g. the reason to bump a question is to give votes for an answer according to this post (emphasis is mine):
the intent here is to resurface questions that someone has attempted to answer, but which haven't yet attracted any votes to either confirm the usefulness or decry the worthlessness of the answer(s) that've been posted
But currently the decision is made on the basis of total score only.