remarkable idea, let the adults and those who can get over themselves - enjoy and trashtalk with their own types -> Instead of forcing bans and goody two shoes restrictions upon them. Just make sure that those with language related offenses make up the secondary group. The players who play the game, don't leave and just happen to hurt someones feelings for the sake of comic relief - even when not everyone finds it funny.
It's sickening to see a culture so embracing the fake-outrage and big brother crap where adults with the reasoning capabilities of small children are programmed to tattle on one another and present feelings that are not their own because some righteous, better than you individual --> decided aids or baby jokes are to be condemned. Freedom went out the window - and riot gets damn lazy in regards to punishment -> get flagged and learn what walking on eggshells is like. Blizzard just has more experience in the matter; they're the professional incarnation of a gaming company- they have perfected the art in many senses and its why Riot's success will always be dwarfed by professionals in the business.
Case and point the 12 million former wow players, starcrafts whole crew, diablos - all those fans will try Heros of the storm - It will blow league out of the water and rightfully so - the company has more experience. The professional scene will follow as the game is more competitive - more fair and team based. Their relationship with vendors and convention centers has years and years - where as RIOT Games are the newfish on the scene - one trick pony waiting to be trumped. Blizzard will do the genre justice - it is their baby after all - being that it would not exist without their place in gaming.
Here here to this idea - It would go a long way towards keeping league relevant in 2015/2016+