Q&A for scientific skepticism
SELECT u.DisplayName , SUM(resp.Score) FROM Users u, Posts resp , Posts preg , PostTags pt , Tags t WHERE u.Id = resp. OwnerUserId AND pt.PostId = preg.Id AND pt.TagId=t.Id AND t.TagName='c#' AND resp.ParentId = preg.Id GROUP BY u.Id , u. DisplayName ORDER BY SUM(resp.Score) DESC OFFSET 0 ROWS FETCH FIRST 10 ROWS ONLY;