League of Legends All Chat Disabled

Riot Games announces that /all chat is being disabled in matchmade League of Legends queues as of patch 11.21 (thanks Game Informer). The post recognizes some positive aspects of being able to chat your opponents in the MOBA, but the conclusion is the reduction of toxicity makes this a valid tradeoff:
While /all chat can be the source of fun social interaction between teams, as well as some good-hearted banter, right now negative interactions outweigh the positives. We'll evaluate the impact of this change through verbal abuse reports and penalty rates, as well as surveys and direct feedback from you all.

/All chat is the only thing being disabled. Enemies will still be able to hear and see your emotes and champ mastery (unless muted), as well as CTRL+1/2/3/4 spam. End of Game chat will still be cross-team. Allies will still be able to coordinate with each other in team chat.