Afking In Ranked
Intentionally and/or consistently afking in ranked should result in ranked bans be it temporary and/or permanent based on the case and precedent.
Personally, I find Riot's LeaverBuster policy of never banning for AFK extremely insulting in a team-oriented game.
Allowing any player to afk for a maximum punishment of a temporary suspension is indirectly advocating for players to leave a game instead of cooperating with their teammates.
"Toxicity" is enforced with a permanent ban which holds a risk factor for accounts which partake in it. Can't intentionally afking be as detrimental as inting, being toxic, etc., to the community of League?
Ranked Bans may be the solution: Allow the player to continue playing the game but restrict them from the competitive aspect due to their consistent and/or intentional afking.
Just a thought, probably quite a lot to work out if it was ever to be implemented.