I have been experiencing a high level of desertions . Many people are quitting when they deem the match to be hopeless.
Some questions.
How do they affect my win/loss statistics? Do they only affect my leaderboard stats? Many, many wins are not showing up.
Is dishonor enabled? So the perpetrators at least have to sit out awhile.
It seems there are ways to game the system stemming from the design of the leaderboard.