Whale shares vote buying sceme

I am talking about the bitshare version talked about in the bitshares hangout the other is a futures market. Unstead of downpowering your steem you are selling the voting power. I am not sure why it wouldnt keep you from selling your steem in the future. I imagine if it expired then you would have some recuring income from your steem. I noticed the price has started to go back down but dollar vigilante is do a giveaweay.