BIG BAD WOLF: Good point but:
-Since they can handle doubling cube they should also be able to handle resign too. If you find that resign procedure PlayBunny described, is tricky and bad for newcomers, then you should find doubling cube tricky and bad also, since it's very easy for a newcomer to be confused and accept a double in a bad position.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)