I know techreport.com has a feature where you actually do get the right to double and even triple vote posts if you become a gold paying member:
http://techreport.com/blog/26153/introducing-tr-subscriptions
The power to upvote or downvote posts in the comments section as many as three times.
So.. how much cash / flooz / stellars / linden dollars do you have on you right now @matches?