I'm with those that think banning pikaness for the contest was too harsh. I think he should've been given 0 points for the match and then allowed to pick future matches fine; that itself would've been a very harsh penalty, knocking him out of contention and ruining his averages. But, it doesn't look like it'll change now.

Though I'm very leery of disqualifying for a whole contest anyone who does this in the future. There's also the fact that one would have an assymetric incentive to try to squeeze in cheating towards the end of a contest.
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