Is there any chance that participants might evaluate others poorly for their own benefit?

Yes, but the algorithm is smarter than that! It actually evaluates the trustworthiness of each judge, so there’s little room for cheating.┬áBasically, the system compares each judge to others. If it sees a remarkable difference in the way a judge votes, it weighs the votes of that judge less. In comparison, votes of a trusted judge are weighed more.