Currently this special incentive of Google for promoting the most active GoogleSideWiki contributors is down.

See [http://www.google.com/sidewiki/leaderboard GoogleSidewikiLeaderboard].


PS.:
The author tested using the discussion part of Meatball to get timestamps. But this facility appears to be available only for a subset of the wikizens here. He had tested it several times, but 
his discussion contribution was rejected by the system each time.
He got the system message: "Your submission tripped our defenses."
Hoping that not other peers are affected by this :-)

[GoogleSideWiki]