Well, while it's true that it's nice to move on, one of the greatest things about entering a competition is for the feedback.
Let's face it, if my beer scored a 42 like AZ's did (great score!), then much feedback isn't really needed. That's a great score, and perhaps the only comments might be "a tiny bit more carbonation needed in the mouthfeel" or "would like to see a bit more hops aroma". People that score over about 39 really don't need much help.
But the 13-35 scorers can really use the feedback to better themselves as brewers.
One of the things I was taught was that for every 10 points subtracted from a perfect 50, to give the brewer at least one good and concrete suggestion to fix one issue.
For example, if a guy got a 20, I'd give him 3 (or more) solid suggestions on how to fix some flaws. Not "Check sanitation!", but "Since this beer has flavors of bacterial contamination, make sure that everything that touches the beer post-boil is sanitized thoroughly including the bottles and bottling wand" or, "There is a harsh astringent taste in the finish of this beer. This could be from using alkaline water. I would look at water chemistry, and consider using reverse osmosis water for the next batch as well as watch the temperature of the sparge to ensure it doesn't exceed 170 degrees". And so on, to mention all of the flaws that were picked up on and provide some thoughtful help.
Those tips wouldn't help you. But they would help the brewer who had a bacterial contamination and used tap water with too much bicarbonate and scored a 20 with his beer.
I think it's crucial that every one who enters a BJCP competition get back a quality scoresheet.