Seroiusly Riot your report system is complete trash. Fix it.
your automated report system is trash, reports are trash, everything to do with the game apart from the store and what brings you money is complete trash. Dare you to prove me wrong :)
In-fact, people are getting smarter you know? Belittling you with "good" words. Every time you screw up, some asshole responds with "aww its ok you'll do better next time!" and not meaning it in an encouraging way. Then when you ask them to stop trolling you after they do it repeatedly, they say "oh no I'm not like that, I am just helpful!" But continuing to respond with "Its ok, try not to die next time!" every time you die, etc. knowing its not a wanted response from them.
Dare you to try to tell me your automated report system is catching that.. Pro Tip: It's not.
Only way to stop trolling and clean your community, and of course show you care about things other than money and E sports is with a human reading the chat logs and laying down a hefty ban.