There needs to be a better detection system for trolls

To start off, no, I am not raging at someone having a bad game and refusing to type in team chat, or someone getting tilted and no longer caring. Recently, I was in a game with a draven (had a similar name to tyler1 so likely a fanboy of the “toxic” persona” who got bad at the team, so proceeded to do everything in his power to make us lose. Stealing farm from jungle, and I don’t mean just getting behind and farming to get back in the game. I mean walking around my entire jungle, taking camps and leaving 1 wolf, 1 raptor, etc. stealing farm from top and mid lane. Ulting into our fountain. Sitting in botlane, waiting for enemy to come and kill him. He admitted to trolling in ally chat, and I explain all of this in my report. I requested a human, and got the same “report successfully solved, we can’t tell you what happens blah blah blah”. I check his account today and he’s still playing this game.