I have created an account on this server and i am currently level 16, my experience so far? Shocking at the least.
People running it down, trolling feeding and worst of all flaming. In one game a GP (who got punished btw) was spamming i wish your family dies form ... (you know and stuff). In another a German dude was spamming about Muslim and we going to slit our throats , i don't wtf is wrong with the Germans but everyone i have met so far is racist.
In conclusion i think it would be wise to remove chat from the game or even make the players activate it in their own volition because there are a lot of crazy kids in EUW. This behavior will only harm your company so please consider.