It looks like Riot might be adding public voice chat to League of Legends, and as a recovering jungler, I'd like to say publicly that I think that's a very bad idea.
I quit playing League of Legends years ago for my mental health. In my many years playing League of Legends and Dota 2, I've found MOBAs to be particularly toxic among online multiplayer games, and League to be especially toxic among MOBAs. I primarily jungled, but I also hopped between roles depending on team needs, and it seemed like no matter how well I was doing, the shit talking was out of control.
