You want an answer for something that is in forum post`s, may you should start read and get ungry with urself for being so ignorant.
3. Player must not leave the game:
LagAbuse.com uses a Autoban system. You will be auto banned in the following situations.
a: Leaving the game
b: Unplugging or Disconnecting (it may increase autoban duration)
c: Game is considered a draw and autoban will turn off in the following situations:
4vs5 in the first 5 minutes
3vs5 in the first 15 minutes
Note: If it becomes 3vs5 after 15 minutes autoban will turn off, but stats will be recorded!
Note: You are strongly advised to check !autoban command in order to check wether you can safely leave.
Note: Everytime player leaves the game before end, he may lose PSR points even when !autoban is off.
http://lagabuse.com/forum/index.php/topic,1425.0.html#post_forum