I think some of you dont know what is a deadbeat, I will explain to you.
A deadbeat is a person who dont played after 1st turn. In another words: if you kill a player before he takes his 2nd turn, he is a deadbeat; if he played two turns and after that was kicked out, you gain points. I also thougth the wrong thing, but this is the right.
Want a reference? See lackattack saying this:
http://www.conquerclub.com/forum/viewtopic.php?t=186
Want a prove? See my game #3910. I "deadebeated", because my partner played 1st turn like a fool and dont played 2nd turn (before you ask me, yes, I think if you are partner of a deadbeat in doubles game you can deadbeat without remorse, even why it isnt against any rule). But he returned to play, was kicked out in round 10, and loses 22 points.

The partner of the true winner was also kicked out, but in round 9, wasnt a deadbeat and gained points too.
Some words about intentional deadbeat: I think its only valid in team games, Im not defending deadbeats at all, but... Why should a player waste his points? Why should the winner of a doubles game gain points of players that had no partner? Its the same idea of gaining points of deadbeats in standard games... Why gain points if you didnt need to do nothing (or almost nothing) to win?
And about this topic: I doubt a well ranked player gives up even before the second turn. So, if he gives up later, he lose his points anyway.