Hello.
That is a really nice competition with the new field for our ck.ua team. Always interesting to see tasks which have direct application and build a solution that can help somebody.
I would like to thanks organizers, congratulate winners, and congratulate all competitors with an interesting experience.
We totally agree that the main mistakes in organizing this competition were 100 submissions per day and opened final leaderboard. You can easily reduce submissions to 5-10 per day, but you should exclude failed submission. And if this is possible you can show results for part of test aircrafts. And only after finishing show final results of the rest of the test aircrafts. Just check how public/private leaderboards work in Kaggle - that is a really nice solution.
And about submissions count. In the last hour of the competition I already saw one of the slides in our future presentation about competition. And the title of that slide "How we lost “overfitting challenge” 
By the way, my separate congratulations to ZAviators (@benoit_figuet and @rmonstein ) with the impressive finish. I am looking forward to hearing from you a cool story about that last day of the competition.