Along similar lines, I wondered whether making up votes have a steadily decreasing effect (say, first up vote is 5 points, then 2.5, then 1.25) and down votes h

Along similar lines, I wondered whether making up votes have a steadily decreasing effect (say, first up vote is 5 points, then 2.5, then 1.25) and down votes have a steadily increasing effect (0.375, 0.75, 1.25...) would be wise.