Disappointment in the Chat Filter
Now I understand that players get heated in games and say rude or disrespectful things to each other sometimes (just about every game). Normally its fine because its just a one liner and then everyone mutes and moves on. What I fail to understand is the how the system decides what is allowed and disallowed.
Some of my friends are incredibly toxic and have told another player to end their own lives - this is unacceptable - and rightfully got flagged and muted by the system immediately for it. However, these friends received the exact same duration of in-game mute as me when I told a player "this is why you are bronze". Furthermore, in a recent game a player on the opposing team called my friend a f*g. Normally I would imagine the system would flag that kind of language as unacceptable, but just in case our entire team reported that player for hate speech (because it is). It has been several days and there were no feedback reports that even suggest the possibility that this player was punished in any way. Now it is possible that we just didn't receive a feedback report even though the player was punished, but this would suggest to us that this kind of behavior is accepted by Riot Games.
As a side note, while you can't say the phrase "kill yourself", you can say things like "people like you are why I support abortion". While its understandable that the chat filter can't flag everything, I highly recommend that these kinds of phrases be looked at because they contain the same underlying meaning.