Yeah that's what I thought at first, but then again, Coyotte is right when he says that you just have to pass each round and won't be losing elo anyways.
That is fair towards people who still want to continue playing even when somebody has dropped. I agree with you that, for me, a game is over as soon as a player drop, but many users here like to keep on playing. And after all it is just a minor nuisance having to click the "pass" button 3 or 4 times...
@trojanrabbit Do you have a more generic formula, for games with 5, 6, ... 10 players?
Maybe something like K = K * 3 / (N + 1), where N is the number of players? That would give the winner a global K of K * 3 * (N - 1) / (N + 1), tending towards a max of 3 times the elo gain. (It fits with your example: 60 for 2p -> 45 for 3p -> 36 for 4p).
Yes, that is the formula I use. It's a pretty good fit up to 5 players. Haven't done experiments with more than that.
@JamesWolfpacker The timezone adapts based on your computer. If you set a game to run between 5 and 8 PM, someone in another timezone 3 hours away would see the game running between 2 and 5 PM. There's no need to do any conversion on your part.