Riot, I have an idea for finding intentional feeders
Since you're still working on the automated system, why not let players honor level 4-5 watch the replays (or just 15 second clips leading to them dying) and chat logs of players who are reported for intentionally feeding. I know it would be a little slow, but it's better than nobody/a few Riot employees being swamped with the task. I'm only level 3 at the moment but I think I'm close to 4, have had no punishments on my account ever, and would gladly do this while in queue/waiting to leave for school/work with less than 1 hour of time to play (I don't queue unless I have at least 1.5 hours of free time). I saw you used honor levels for PBE applications, and that's good! We can use the honor system for so much more.