We receive so many entries that it would be horrifying to try and sort them by category without a designating name. The naming convention allows us to arrange the entries by category and get them assigned to our judges as quickly as possible. If we can move through the judging process expeditiously, the finalists are selected sooner and that means more promotion time for you! And less stress on our volunteer staff. Please take a look at the rules for categories and renaming files. You can also refer to the FAQ on this topic.
The Competitions Drones thank you for working with us on this. It means we'll get fewer beatings.