I notice people cutting out, but I have never gotten a LOSS when someone else quit. I always get the 3-0 win OR sometimes it will just give no money lost or gained.
I'm not denying it hasn't happened but not personally. (PS3, played a lot..)
i must say i have noticed that since the december update, i have not lost a match after disconnection. however, i end up without winning money 90% of the time. I rarely get the money and a 3-0 victory. before the december update, it was very common to lose 0-3 after disconnection of the opponent. of course these guys were not disconnecting, but blocking incoming traffic.
i guess now when they block the traffic, they only get away by not losing anything, instead of winning.
however, there seems to be the problem of losing when disconnection occurs in mlo tournaments, which i do not play.
apparently the person with the higher ranking points gets the win by default.