There should be strict penalties for draft dodgers and AFK leavers.
The issue is there has been a lot of DDoS on Blizzard recently and you wouldn't want someone who disconnected from a draft because of a DDoS to be penalized.
If there was a way they could "turn off leaver penalties" during a DDoS, then it'd be nice, but I doubt it.
Either way:
Leaving draft by closing game client should be lose 1,000 points (fuck the QM penalty, no one cares, they just go AFK in a QM and come back at the end of the game).
Leaving a game due to inactivity should be 1,000 points loss and a 24 hour ban from HL
There's not place in the game for AFK players and that's the only way to truly burn a guy being a baby in a Master/Diamond game. Drop him a whole rank and kick him off hots for the night