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.
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DECLARE @DataDumpDate AS datetime
SELECT @DataDumpDate = MAX(CreationDate)
Id AS [Post Link],
CASE WHEN ClosedDate IS NOT NULL THEN 'Yes' ELSE NULL END AS Closed,
CASE WHEN CommunityOwnedDate IS NOT NULL THEN 'Yes' ELSE NULL END AS Wiki,
OwnerUserId AS [User Link]
WHERE PostTypeId = 1
AND (Score = 1 OR (Score = 2 AND OwnerUserId IS NULL))
AND (AnswerCount = 0 OR AnswerCount IS NULL)
AND (CommentCount IS NULL OR CommentCount <= 1)
AND DATEDIFF(day, CreationDate, @DataDumpDate) > 365
AND ViewCount <= (DATEDIFF(day, CreationDate, @DataDumpDate) * 2) -- * 1.5)
ORDER BY Score ASC, CreationDate ASC