*THE* absolute truth
People who AFK in a game are infinitely more guilty of detrimental conduct than any other offense that exists in the game period.
This includes intentional feeders, as at least with intentional feeding, the person has to also spend their own time running into lane murdering themselves, whereas with AFK'ing, the person is literally trapping 4 other human beings in a prison for however many minutes until they lose or until that 1 jackass who doesn't want to give up finally gives up the third vote in.
No verbal harassment of any kind can come close to the ACTUAL impact the action of AFK'ing has on 4 other players on your team
Also, votes should clearly be majority rules. 3 votes to surrender vs 2 votes of any other kind = surrender. How it is that 1 AFK person and 1 boring happy-to-lose - who clearly has hours of personal time to blow with no progress to show for it being just fine to him - be able to dictate to the 3 remaining sane people that they have to keep playing this wasteful match?
That is all.