Why is there always that 1 guy who ruins the game's mood and gameplay ?
Seriously , this is happening almost everytime you get 3 guys and you who are playing nicely while having a nice communication without flaming and such then you get a 0/3 mid or top or adc in 6 mins , he starts spreading the tilt by spamming missing pings careful pings and danger pings like 6x times every 20 seconds , tell ennemy jungler to kill himself and his family when he ganks him , blames our jungler and wishing him to have cancer for babysitting our good mid laner then this guy makes both team salty raging and flaming ( probably ) , then they start getting tilted of his flame they start focusing more on chat than on the gameplay muting won't help that much , sure you won't be able to see his nonsense trash talking but at the same time that won't stop him from standing still for 5 seconds in middle of nowhere every 10 seconds just to trash talk in chat which is actually bad and reduces the chance of winning instead.
ever had a game where your team was doing okay , but you had that 0/3 zed who started spreading the tilt and started flaming the jungler who was actually doing good ? and you ended up loosing because zed instead of trying to come back , he started flaming the team just to make them play worse.. Sorry for my bad english