I finally isolated and resolved a problem with random network errors that was causing a variety of different bugs on the site. I apologize for how long this took to find; thank you to everyone who reported issues!
By popular demand, a new game mode has been added: the ability to require a winning bid to go out. More details can be found in the "View Rules Of Smear" section. Let me know if it works out, eh?
Adding a "Show Score Graph" button that allows you to see a graphical representation of the game's score over time. This will only work for new games - old games won't have the necessary score data required to show how the scores have changed over time.