As Denny stated, the process has been reviewed for several years now, and continues to be a challenge. Changes have been made to try and accomedate the increases in entries. Up until now, there has been a aversion to placing caps on entries, but as an option it is not off the table.
One of the primary hurdles has been the number of available qualified judges. While it is easy to say just add some more regions, or add more enteries per region, there are only so many judges in the available pool. The NHC is the largest homebrew competition in the world, and it had to be capped or the results would have been either rushed and/or incomplete feedback - an undesirable outcome.
I favor limits, and I have voiced this in the past. However, if I recall correctly, we learned last year that if the number of enteries were to have been capped to 10 per member, we would have gained something in the neighborhood of 2% - 4% more availablity. While thats an improvement, in the scale of things, it wasn't seen as a solution.
In the long run, I would encourage members who are not already BJCP certified to go to www.bjcp.org
, look it over, and consider going through the learning process and becoming a judge. After 18 years of brewing that is what I did last year. I was likely one of the last groups to test out under the old method. Once I get a few points under my belt I will be Certified and I can become a small part of the solution.
And as an added bonus, I learned more about brewing, history of brewing, beer styles and general beer information last year than I had in several years. I believe by studying for and taking the exam, I have incrementaly improved my knowledge of the brewing process and how to make better beer.