I think there's a bug in the display of the votes. Some entries that had votes have the votes disappear, reappear and then disappear again. Same voter shows up when it reappears. In another case, one entry appears twice, each time with a vote from the same voter. I don't think this is anything nefarious, but rather just a technical glitch. For example, I am fairly sure that the duplicate display is not counting as two votes.
One of my entries received a vote. Then the vote vanished. Later, the same vote was restored. Now it has vanished again. I'm not concerned for myself, as I have a very low expectation of winning (there are many fine images entered). I am concerned that the poor fellow who kindly cast a ballot was disenfranchised not once but twice.
I suspect that Jorge simply needs to fix some code.
To those of you who are complaining about the contest, please remember that Stephen is doing this on his own dime. He is not charging us anything for entries. Some talented person will deservedly win a nice lens. If it's not you who wins, you shouldn't have such sour grapes. I see photo contests on the web all the time. Most all of them charge entry fees. If you don't win this one, you also haven't lost anything.
If you have constructive criticism, you should post it. If you are simply venting frustration because you are not winning the contest, you should act a little more mature.