Q&A for professional and enthusiast programmers
SELECT CONVERT(float, SUM((UpVotes + DownVotes) / DATEDIFF(day, CreationDate, LastAccessDate))) / CONVERT(float, COUNT(*)) AS VotesPerDay FROM Users WHERE DATEDIFF(day, CreationDate, LastAccessDate) <> 0 AND LastAccessDate > CONVERT(DateTime, '2015-12-27') ORDER BY VotesPerDay DESC; --LastAccessDate > CONVERT(DateTime, '2016-08-01')