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Amazon: How do they track you when voting?

Discussion in 'Black Hat SEO' started by Tienvbui, Apr 9, 2012.

  1. Tienvbui

    Tienvbui Newbie

    Sep 26, 2011
    Likes Received:
    It is a strange thing.

    I have like 10 different accounts with Amazon. All accounts can write product reviews fine but when I vote on a review:
    "Was this review helpful? Yes/No"

    Only one of my vote counts. It doesn't matter how many times I vote with all my other accounts.

    I've tried using different IP address (hide-my-ip), anonym.to and incognito chrome browser.

    Amazon seems to know that I am voting twice and they are not counting my vote.

    Any advice?

    Thanks! :)