joshi tm: Actually, I don't think it should be turned on by default. New users may become confused when all of a sudden a game gets passed back to them with a completely different configuration and don't know what's going on.

What I do think is that AutoPass should be a one side feature. If I want to automatically pass when it's my turn, the system should do so, weather my opponent chooses the same setting or not. Weather I pass or AutoPass has absolutely no impact on how my opponent plays the game on his/her side.