Ideas
It is fine in regular game play where you can report people via the scoreboard but in Red Sec you can only report people via the "Recently Played With" section and this does not show what random name streamer mode gave to particular players.
Another issue with Red Sec is that the game doesn't tell you who killed you if your death results in the end of your game play in the match. For example, yesterday I was killed by melee attacks, would be fine except the closest person to me that I could see was 100m away, the ring of fire was right behind me, I was on the second story of a building and even as the camera pulled away I still could not see any players in melee range of me.
They don't show up on the leader boards on the base game either. Had someone in chat talking trash, his name couldn't be matched to any player or other identities in the recent players list.