Questions older than a year that you can mark for deletion by simply downvoting them. The rules are detailed here: http://meta.stackoverflow.com/a/92006. The view count rules are relaxed to 2x the question age because those might fail to keep up a steady stream of views at some point in the future.
Q&A for Ubuntu users and developers
DECLARE @DataDumpAge as datetime SELECT @DataDumpAge = MAX(CreationDate) FROM PostHistory SELECT * FROM Posts WHERE (Score = 1 OR (Score = 2 AND OwnerUserId IS NULL)) AND (AnswerCount = 0 OR AnswerCount IS NULL) AND CommentCount <= 1 --AND DATEDIFF(day, @DataDumpAge, CreationDate) > 365 AND ViewCount <= (DATEDIFF(day, @DataDumpAge, CreationDate) * 1.5)