Investor users ranked by total bounty spending on bounties.
This may vary from the value listed in users' profiles because this includes (all?) bounties on deleted posts, which are not included in profiles.
Q&A about the site for practitioners, researchers, and students in cognitive science, psychology, neuroscience, and psychiatry
-- Top users by reputation spent on bounties.
UserId as [User Link],
SUM(BountyAmount) as TotalBountyAmount
WHERE UserId > 0
AND VoteTypeId = 8 -- BountyStart
GROUP BY UserId
ORDER BY SUM(BountyAmount) DESC