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Posted by skulkrinbait@googlemail.com on 11/14/07 12:55
I'm interested in a solution to this kind of problem myself and the IP
address version is the one I would probably go with, although it's far
from perfect.
One other solution might be to ask users to enter their email address
and then only accept the vote once they click a link on a confirmation
email. That's very cumbersome and people may not go to the trouble of
bothering with that, depends on how important the vote is I suppose!
Even that's far from foolproof, but worth mentioning I thought.
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