The dynamic you mention is certainly present (and, there is some benefit to allowing disagreement at least a partial influence on votes). Unfortunately, in this instance it is hard to distinguish simple disagreement from disapproval of bad arguments and prvalent logical rudeness. The same people who disagree with Knox being guilty are people who object to the type of reasoning used to support this contention. That’s part of how they became convinced of her innocence in the first place.
The dynamic you mention is certainly present (and, there is some benefit to allowing disagreement at least a partial influence on votes). Unfortunately, in this instance it is hard to distinguish simple disagreement from disapproval of bad arguments and prvalent logical rudeness. The same people who disagree with Knox being guilty are people who object to the type of reasoning used to support this contention. That’s part of how they became convinced of her innocence in the first place.