that's possible, but the rules should be clear. or is "When the Drake dies, please back away from the corpse immediately! One of the leaders will be working on managing the loot to distribute to the main characters in attendance. If anyone has any questions just reply in this thread, message me, or ask in game. Thanks!" not enough.
The only way to prevent this, since it is obvious some players chose to be blind/deaf is to have the event permits so only staff can pick up. This poses problems for the picking up of the corpses from pre event fights - that can be solved by those corpses picked up and dropped just off deed. Rule breakers just cause time loss and take away fun of the game for others. They are very lucky Wreck was gracious.