Chat shouldn't go away when someone mutes you
Recently had a toxic player send me a friend request post-game. They proceeded to type some more toxic things and then mute me. Whatever. My issue here is that, when they muted me, their chat log disappeared from my side of the server, so not only could I not screenshot it for my formal report, but that there is no easy way to send a report to Riot. This is a feature that could very easily be fixed, and should be.