I used to play on NA because of online North American friends. They don't play anymore so I transferred to EUW.
NA was quite toxic, as the game's community has a reputation for. But since coming to EUW at least 90% of games involve some sort of abuse to someone in the chat and it seems the people on EUW have a reporting obsession; all the time it's "report [champ name]".
Can people please just chill more.
It's just a game.
And yes it seems like a lot of people are really dumb by the way they play, but saying to report them or telling them they're bad DOES NOT HELP ANYTHING.
"If you're not going to say anything nice, don't say anything at all": a classic saying.
EUW is VERY TOXIC (a lot more than NA), and it ruins the game!