@acornist: My comment should not be read to discourage new players. But if you are an experienced player tired of dealing with those who drop games, look for or set up WTA games.
From the help: "For more experienced players who have over 100
there is a "Winner-takes-all" mode, which can be chosen instead of the default "Points-per-supply-center" mode."
I don't know whether players with fewer webDip points can even join WTA games, but it's one way to possibly filter out new players who don't fully appreciate the commitment needed to play a game of Diplomacy.