Yet Another Witch-Hunt; 'Hidden Monsters' Challenge

It seems quite disturbing to me that the 2nd-place getter, who also came in 8th and 9th, managed to score 7 votes of 5! Even the excellent winner of the challenge didn't score that many 5's.
http://www.dpreview.com/challenges/Entry.aspx?ID=660904&View=Results&Rows=25
http://www.dpreview.com/challenges/Entry.aspx?ID=660903&View=Results&Rows=25
http://www.dpreview.com/challenges/Entry.aspx?ID=660901&View=Results&Rows=25
I wonder if there might, just might, be a little bit of vote-rigging here?