Want feedback re hosting: changing the time for voting

Short answer:  By looking at any member's profile, you can see the total number of votes he or she has cast.  If you compare this figure before the challenge starts and after it ends, you can see if any votes were cast during that week.  (This does not, of course, tell me in what challenge(s) those votes were made.  It's not a perfect system, obviously...but far better than no ability at all to check voting history.)

So, what do you think about my current idea?

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http://www.pbase.com/santamonica
http://www.strataphotography.com