I don't understand what you mean by the automated system being "cheesed"
there are alot of ways to get by the automated system... realistically just google an offense + cheese and you'll find a tutorial. Most recent one i saw that i remember was this dude that would (if he ran into a player he didnt like or something made him mad) queue up as jungle
, feed 2-3 kills to a lane, usually mid, and then afk farm all game. He goes on to show his match history and accounts he has that were banned after a hundred or so games.
Another way to cheese the AFK reporting is to just say nothing in chat, and AFK farm (usually jg if you can) until your team loses. Eventually if someone sends in a replay you'll get caught up, but most people aren't willing to go through the hassle. I am willing to though and i do.