In most tournaments, a win is 1 point and a draw is 0.5 points for both sides. I'm aware of "armagadden matches" where a draw is 0 points for white, and 1 point for black.
Have there been any tournaments where a draw is 0 points for both sides?
This would seem to be another possible solution to the problem of too many draws, by removing any incentive to draw from both sides. (It might have a negative consequence of leading both players to play out draws for the full 50 moves hoping for the tiny off-chance of a blunder.)