Jumping directly to the top5 positions with few submissions in the same time and with a close score , same score to four decimal places, isn't that suspicious?
Sometimes the world unveils itself to us in the most interesting ways... a four decimal difference on a difficult problem is one of them. It doesnt happen every day, enjoy it while it does
It's so sad that the world revealead its secrets to a specific group and not to others. It was happy hours I guess, despite it's still early for christmas :)