The difference in the number of idiots on the two sides is greater than the number of cancelers plus the number of experts. The cancelers have not made a difference. The impact is neutral.
The number of cancelers is sufficient to narrow the difference in the number of idiots to smaller than the number of experts (who have presumably achieved an expert consensus). The experts voting as a block can sway the election either way. The cancelers have enabled the experts to make a decision. The expected impact is positive (50% chance the experts change the decision, 50% the idiots were right anyways).
The number of cancelers is greater than the difference in the number of idiots plus the number of experts. The cancelers have changed the results of the election, without empowering the experts. The expected impact is neutral. (50% chance the new decision is right, 50% it is wrong. It is worse if the strategy convinces you to cancel out the idiots you think are a little more likely to be right. If you are canceling the idiots you think are a little more likely to be wrong, you have other reasons to vote that way.)
Having a reliable positive impact depends on being in situation 2, which, given a small number of experts, seems unlikely unless you are careful to only apply the strategy in this case, which would be a lot of work. I expect other strategies to get better results for the effort.
Consider the following cases:
The difference in the number of idiots on the two sides is greater than the number of cancelers plus the number of experts. The cancelers have not made a difference. The impact is neutral.
The number of cancelers is sufficient to narrow the difference in the number of idiots to smaller than the number of experts (who have presumably achieved an expert consensus). The experts voting as a block can sway the election either way. The cancelers have enabled the experts to make a decision. The expected impact is positive (50% chance the experts change the decision, 50% the idiots were right anyways).
The number of cancelers is greater than the difference in the number of idiots plus the number of experts. The cancelers have changed the results of the election, without empowering the experts. The expected impact is neutral. (50% chance the new decision is right, 50% it is wrong. It is worse if the strategy convinces you to cancel out the idiots you think are a little more likely to be right. If you are canceling the idiots you think are a little more likely to be wrong, you have other reasons to vote that way.)
Having a reliable positive impact depends on being in situation 2, which, given a small number of experts, seems unlikely unless you are careful to only apply the strategy in this case, which would be a lot of work. I expect other strategies to get better results for the effort.