Mute All
For those of you who thinks that Mute All is the best option to prevent other players from getting toxic and throwing reports in your face, it's really not. It's actually just the opposite. Not communicating with your team, and not being about to reply to your teammates when they're asking you something can actually cause your teammates to think you're screwing with them, and encourages them to report you in the end if you make mistakes.
For example, maybe you're lagging, but from the perspectives of your teammates, it looks like you're just running around randomly and purposely feeding. When your teammates ask you what you are doing, instead of being able to tell them that you're lagging, you don't type anything at all, which causes them to think that you're ignoring them, and feeding on purpose.
That will very likely result in 4 reports coming in your way at the end of the game. But that was just an example. It doesn't even have to be because you're lagging. It could be anything. But the point is, not communicating with your team is not the best way to prevent toxicity. It just fuels it. Only difference is, you just won't be able to see it.