Seems the count is working. Double voting from the same account should be forbidden. 
Challenge accepted.
I've sent three votes to that poll from the same account now -- let's see what happens. Fingers crossed!
Why should it be forbidden? The more you pay the more you are interesting in the more your opinion should count.
And we can't come to a consensus on this topic so I won't respond to it. Also this system will make this possible: 1 vote = 1 user .
What you are talking about will be implemented into NXT in the future.