there is always the possibility of foul play of course, artists rerolling if it is someone with no, or little following, or not a friend. since the art itself may not draw much attention

wont always happen but always the possibility, and that will skew it in one way

You're not dreaming. Same goes for national lotteries. Where the winning tickets are down south in the larger cities which doesn't support the math for possible winners. If you buy tickets in a large city you're far more likely to win. For example in Canada Alberta almost always wins the big lottery pots followed by Ontario. For the number of population and tickets sold this is very skewed for winning to be there that often and always the biggest pots.