A worthy theory, but the events in question appear to have nonzero acceptance counts after clicking on them. :)
bovineone
: You missed the party 2008-04-05T06:36:32Z
Apparently there was a "Wild party in the streets in Christchurch" to celebrate Earth Hour there, but you missed out... http://www.treehugger.com/files/2008/03/earth-hour-fiji-new-zealand.php
2008-04-03T19:10:38Z