Need's to a be a forgivable leave game feature added

If someone is spam pinging you, and at least 2 people cussing and swearing at the start of the game. There needs to be a option to leave game with-out being penalized. Great way to go about this would be to have a report player for (reason) dialog box beside or above the leave game option. I'm all for banning people that leaves games, but if someone spam pinged me for auto-attacking a lane minion, then insulted me 4-9 times and said he felt like snapping my neck, I or anyone else for that matter should be able to leave along with everyone else that reports what happened and jump into another game, while the automated system checks the data and compares it to the in game chat record and issues a ban to either the players that falsely reported and left or the player that drove them to leave the game. People will cuss at you and purposely drag the game on for over an hour typing insult after insult to just about anyone, doesn't matter if you're 15-3 or 2-11. This way all the actual "Toxic Players" get banned and all we are left with is good games. Just to clarify there is a large amount of players that by pass the system to to turn it into a weapon against player's with good behavior.