Option to auto mute rather then manual? Ex: All chat @Rito

I think this would be a really helpful option. It would really help with player behavior. The ping system is more then enough to convey everything to everyone especially with time stamps, people can see when flashes are up etc. So I think the option to automatically have games mute everyone before you go into game would help with player toxicity i think. The option to have all chat turned off, just add another option to have team chat off as well? I think this would go pretty well with the community. I think a lot of people would forget to turn it back on to see what people actually say or forget it was even on so they would be less likely to respond to people baiting them into a argument. Or even if they say something, they would see no reply so no incentive for them to continue raging. I would really appreciate a response to a reasons why you wouldn't want this @Riot if you think this is bad just to understand another point of view.

edit: Theres some guy replying with the same idea with multiple accounts, please just ignore them: zpoopz, Sarutobi, Warios