I am both a cook and a judge.
When the judges are instructed on what to provide on the feedback cards, they are requested to provide 'constructive comments' that will 'help a cook improve'.
I think that there isn't much of a leap between 'use a sharper knife' and understanding that the judge found the edges of my ribs to be ragged and there for less appealing.
Or 'use less salt' means that my entry was too salty. Etc.
Remember, any time a person is feeling offended, that should throw up a signal flag that there is an opportunity to learn something.
I am here to learn as much as I can about cooking and competing in BBQ - everyone has something to offer, no matter who they are or what they have to say or how they say it.