Players mocking at end of game

So too many times now I've seen people say things at the end instead of "gg" they say things like "lol you all suck dick, uninstall" "drink bleach, bitches" "Have fun on your date with the noose" and other things, seriously, wtf has happened here? I've seen these messages occur OVER and OVER and OVER and yet even when I report them, I see them in others livestreams at times and they're still chatting away being completely toxic and nothing being done about them, has Riot given up on the report system?
Report as:
Offensive Spam Harassment Incorrect Board