I do kind of wish Riot would also worry about griefing/inting as much as they worry about toxicity.
I do not know if it's just me, but Riot places way too much emphasis on toxicity that inters/griefers are getting away with it. I know that people are trying new, and wacky stuff during preseason, but it gets worse in preseason more than regular season. I have seen way more extremely outlandish picks in many of my games then I normally would. I am not saying that practice, and testing is a bad thing, but preseason should not be a Mad Max Paradise it is. Now I do believe that this is a issue, but I also really think Riot do need to work on the balancing of just the normal game in general with regards to what is viable, and how snowbally/onesided games are even with new bounty system that just can snowball the game in the opposite direction, or just take a semi even game to a hard snowball for one side.