CS:GO like tribunal.
Cheaters, feeders, trolls, toxic players, and other undesirable behaviour is pretty much present in any popular game. CS:GO is one of these games, and i just love how they involve the players in dealing with these undesirables. Sure there are some auto detection systems, but they are never, and CANNOT be perfect. Well unless we manage to create a human like AI.
What can work however is to put players on the line. Let them decide which report is true, and which ones are false. Auto detect would still work, but cases that aren't guilty by that would be sent to tribunal mode. How does it work?
First players could chose preferred languages. An automatic system would try to detect the language of the subject, and assign cases accordingly. So no auto skip on the harassment report, because you can't read the stuff. Reports, that aren't related to communication wouldn't be checked. You don't need to understand what they write to decide, that someone is an int. feeder or not. Players could join a sort of tribunal mode, and watch entire replays with chat about the games they need to judge, and see, if the report is justified or not. Unlike those who truly play that game they would see more, and could watch the parts where the subject is. Not just see, that ally has been slain while farming.
In order to prevent too much subjectivity each cases would be judged by a number of players, and players who played on the match would be off-limit. My first idea is 10 judge, and 7 guilty requirement. Numbers could change of course.
Making players go to tribunal, and do this hassle could be done by various rewards for helping out. For example orange essence, or chests, or blue essense. There are plenty of rewards Riot could give. Not to mention that some people would contribute just to make the game better.
Also there would be intentionally wrong cases. Partly to get bots, and partly to get players who just auto guilt. These cases would be real games, but fake reports. For example verbal abuse on a player who wrote nothing on the entire game. Or int. feed on the player who died the least. They would appear randomly, and chance would be heavily increased, if someone makes decision too fast. If someone votes guilty on these cases, then they would be suspended from tribunal for a time, or even permanently, if they get caught multiple times.