While trying to examine the distribution of question view counts on Stack Exchange sites, I came across an anomaly - there appear to be questions in the database with
ViewCounts. This query I ran on Stack Overflow found a small (but not insignificant) number of questions with this. They all appear to be questions asked between 12.41pm and 12.55pm on 13 January.
SELECT Id AS [Post Link], ViewCount, CreationDate FROM Posts WHERE PostTypeId = 1 AND ViewCount IS NULL ORDER BY CreationDate
These are the last few questions to be imported into the Data Explorer. I'm guessing they got a
NULL because their
ViewCount is actually zero.