Count your zero score accepted answers and total accepted answers. Note that some other similar queries don't exclude answers to your own questions. I'm pretty sure the badge excludes them.
Q&A for those who study, teach, research and apply economics and econometrics
-- How unsung are you? -- Count your zero score accepted answers and total accepted answers. -- Note that some other similar queries don't exclude answers to your own -- questions. I'm pretty sure the badge excludes them. select count(*) as [Total Answers], sum(case when a.Score = 0 then 1 else 0 end) as [Zero Score Answers], sum(case when a.Score = 0 then 1 else 0 end) * 100.0 / count(*) as [Percent Zeros] from Posts q join Posts a on a.Id = q.AcceptedAnswerId where a.OwnerUserId = ##UserId## and a.CommunityOwnedDate is null and (a.OwnerUserId <> q.OwnerUserId or q.OwnerUserId is null)