People may be creating polls for karma, but I don't know what the use of that would be. A certain karma threshold is needed for downvoting, and (I think, since

People may be creating polls for karma, but I don't know what the use of that would be. A certain karma threshold is needed for downvoting, and (I think, since I've never tried it) posting polls to begin with. So there may be some initial incentive to game the system, in order to get karma, but after that, why bother?