I think the game doesn't even read such extensions (.mdmp & .txt).
The avatar is my Sim from the writing challenge in the tournament. Her name is Georgina Starck, very loosely inspired by the character of George Starck in The Dark Half by Stephen King. I had just read that old book again, some weeks before the challenge, and I've always been struck by that evil (and rotting) guy. But besides the name, blond hair and an occupation in writing, my Sim and him had nothing in common. He's the typical bloodthirsty horror monster from King... and she spent 12 weeks writing children's books! I more or less enslaved that poor pixel soul to her computer, so I thought she deserved some kind of tribute, hence the avatar.