Simple question that id assume will get a multitude of answers.
The main reason why i'm opposed to the toxicity and the normalization of this type of behavior is because I have a lot of introverted friends who tend to be very adapt at games but will never play Dota with me because of the spewing hatred on the chat. My first response was "just block them/mute them" but when you have to do that with every single party you are queued with it gets laborious.
For me i would remove the report system all together it is just used against players who have had a bad game or were in a bad match-up and the rest of the party dog-piles on that one person.
I would increase incentives to being nice to other human beings providing wards, buying courier advising teammates what to do e.g "specter recommends lion to buy x"
Anyway its a tough question that valve cant solve so I'm interested to know what suggestions on how to cut down on the unhelpful language present in dota/lol chat