We all have some vote value higher than zero. But it is too small and because of this the steemit doesn't show it. Here information about votes on this post. I don't how steem blockchain actually compute the vote value but it should depends of "weight. There's information about my information.

    {
        "voter": "clevershovel",
        "weight": 1562,
        "rshares": 819081617,
        "percent": 10000,
        "reputation": "1096827756129",
        "time": {
            "$date": {
                "$numberLong": "1523615025000"
            }
        }
    },

I just want to say that 0.00$!=0$