I sometimes forget that people don't exclusively play live anonymous gunboats, as I do, but I'll offer my two cents for that particular situation.
I would never vote to cancel (a LAG). I see no reason to not draw it amongst the players who are actually left. That way everyone wins a little bit, and the CD is punished. But I usually won't draw with one CD at the start of a game, because that doesn't throw the game too much - everyone knows to pounce on him and to fight the people that are gaining from it. With two CD's, especially with two close ones, like Austria and Russia, for example, I would definitely vote to draw, because Turkey will almost certainly win.
The bigger problem to me is CD's in the middle of a game - when someone unpredictably CD's in the middle, if they have a significant amount of SC's, they almost always throw the game, and do so badly. I perfect example is the game (that I should have won :-P ) that I just finished. In that case I will always vote draw.