I am interested in the Parato-ization of up/downvotes. If one recorded all users who visited each news item and whether or not that user voted at least once, w

I am interested in the Parato-ization of up/downvotes. If one recorded all users who visited each news item and whether or not that user voted at least once, what would the distribution of voting percentages look like? In the US, old people are a powerful voting block because they vote a lot. Do a small fraction of HN readers have a highly disproportionate effect on karma?