User blog comment:Lokiwg/My Ranked Horror Story/@comment-8267817-20131002132321/@comment-20804982-20131002174907

The AFK-dodge problem is a good point; however, if we are changing the LP system so that AFK results in no loss of LP, there is no reason why we couldn't change the system so that the AFK takes a double LP hit (or something strong enough to encourage him not to AFK-dodge).

I think the main problems with AFK/LP modification are:

1) Accidental DC's - Riot probably doesn't want to punish people with a huge LP hit just because their power goes out, etc. (Honestly I don't really agree...I mean, you shouldn't be playing ranked if this happens often).

2) AFK Detection - This is the major point, and probably why they don't do it. It is very dificult to judge what is an AFK, particularly if it is all or nothing. A DC in the first 5 minutes is easy, but what about a DC at 20, 30, or 40 min? What if the player is a rager and doesn't DC, but just derps around not helping. What if the player goes AFK for 10 minutes in the middle of the game, and then comes back. What if the player DCs for the first 10 minutes of the game because his computer crashed, and then comes back in? It is nearly impossible to cover all these cases fairly if you have an all or nothing mechanic. (It might be possible to do some kind of sliding scale LP loss/gain for AFK mechanic, but it would be very difficult, and would probably feel unfair in lots of cases.)

3) Platform for Abuse - The AFK LP mechanic would probably encourage toxic behavior: "Noob, you should just DC so we don't take LP hit from your ***"