[geronimox]

"At the time, I was hoping Dmitry would reject my HIT so I could go on a tirade about how unfair it was, and try to get him banned from MTurk or whatever."

I found this quite amusing. You know why this HIT was approved? Because requesters are also punished for rejecting too many HITs! He also would have been banned had Amazon discovered the scheme he was pulling.

[compare]

This is a serious problem that requesters face. Often the workers who spam everyone with fake work will report anyone who rejects their work as retribution.