I'd imagine that fee would be literal money, as this nullifies concerns about people creating fake accounts to get more Karma, and means people are fully incent

I'd imagine that fee would be literal money, as this nullifies concerns about people creating fake accounts to get more Karma, and means people are fully incentivised to place votes carefully. It does introduce a "pay to influence" aspect that I don't love, but one would hope that at sufficient scale the Efficient Market Hypothesis would kick in, and trying to pay to influence would just result in you burning your money. > Has anyone tried a logarithmic or similar scale for voting? Hmmm good question. I don't think this would make a huge difference, as visibility is generally a function of a post's current rank rather than its actual score, so any monotonic transform isn't going to have a large effect.