Is Riot doing anything about the toxicity that's currently existing this summer?

Haven't played in the summer that much generally, but wow I'm amazed at some of these people. Last game I went into a ranked lobby to find someone say that I, and one other player were going to cause us to lose the game. He then proceeded to verbally harass us in the lobby and game, and managed to feed quite a bit.

This is pretty standard in what's going on in League ATM. Trolls, AFK's, toxic players ect. Can you mute them in game? Of course, although I still have to deal with them attacking me in the pre lobby while I'm trying to figure out who's playing where, and deal with them trolling during the game. Is there something in place currently to put people like this in check? If not, something seriously needs to be done, as it's just becoming not fun to play the game.