i have experienced a lot of QM players who either trash talks, speaks a foreign language or threatens with reporting players when they dont play their own prefered tune. Go to options and in under social and disable team chat and set whispers to be allowed only by friends, saved me a lot of annoyance and frustration from toxic players. It wont help AFK players being better but at least you wont have to watch keyboard warriors doing their toxic thing.
Frustration in mobas comes from many sources.
Sometimes you think you are the best, more likely than not you suck and blame others.
Sometimes you come from a bad losing streak with no major fault of your own.
Other times you are just scum and want to lash out on other.
You can turn off chat, ok or we can change take it and give it. I have no problem with insults tbh, couldnt care less and when i do care i just answer back… Daddy Blizzard says it’s a no no. So better turn off chat