Game cancellation
Okay, so I'm sure many people have experience the absolute dumbest thing Riot has yet to fix. What am I talking about you ask? I am talking about the stupid fact that if someone on your team does not connect when the game starts, the game continues and you are now fighting a 4v5, which lets be honest you will not win, a waste of time and a waste of your ranking. In pro games the game doesn't start until everyone is there so how hard can it actually be to write a little tiny line of code that says if someone does not connect to the game in a certain amount of time, the game is ended and send all members back into match making. Seriously it cant be that difficult. Riot needs to actually update this game for its larger player base and not just for its pro scene.