I actually agree with this as a guideline, but not as a rule. Since it's listed as a guideline, I'm not complaining. I've (anecdotally) seen a number of cases

I actually agree with this as a guideline, but not as a rule. Since it's listed as a guideline, I'm not complaining. I've (anecdotally) seen a number of cases where complaints have encouraged critical thinking on the part of voters as to whether a comment deserves a downvote or is being downvoted simply as a byproduct of groupthink. I know it's changed my mind on at least one occasion as it's gotten me to take into consideration that the person making the comment is surprised at the volume of downvotes, suggesting that the person writing the comment thought the comment would be less controversial, potentially warranting a deeper read. I understand the desire to minimize complaints about downvotes, but like any good guideline, sometimes an alternative is more effective.