Breakfast Topic: AFK debuff

I got the idea for this breakfast topic when I saw the following two posts virtually back-to-back in the WoW forums: Reporting AFK'ers - a Pleasant Surprise, and AFK Reporting System Broken And Abused. The former tells the story of the AFK system going well, all the AFKers being removed from the game, and the Horde going on to win. The latter is from the perspective of a player who was erroneously flagged AFK, and asks for several changes to be made, including a limit to the number of AFK reports a player can make in a given amount of time. (It turns out that limit, while not user-visible, is already in place.)

So there are obviously some diverging perspectives on this AFK debuff system thing. What do you all think of it, having had a couple days to check it out?