It happens.
A majority of the time, when a flash is under judgement, people vote 4's, 5's and 0's. After it's out, is usually the 're-correction' stage, where people go 'Hey, this doesn't deserve x score, I should vote 0 to lower it staggeringly' - and vice versa.
Also, after 200 votes, 1 vote is worth 0.XX from a high level user so who knows.
punter75
maybe because those people didn't like it..... just a possibility....