You want REALLY bad hacking? Try playing Combat Arms, an F2P MMOFPS run by Nexon. You're almost bound to get a hacker every other game (whether every time they swing their knife they get a kill, or every time they shoot a sniper rifle they get a headshot even while facing a wall) and absolutely nothing is done about it. I even had a game where after we kicked the guy, everyone in the room reported him, and I got him in a match a few minutes later and he was still hacking.
It gets even worse, where if you start getting a good amount of kills, people start bitching, 'Ooohh, he's hacking! He has a higher amount of kills than everyone else, but mainly me! Waah! Waaaaaah! *Sucks their little baby thumb*'. You can't do anything in that game without someone bitching about it and complaining. I got hit with a 1 month ban because one guy reported me about 5 times after each game because I kept getting more than 10 kills over him. And he bitched about it every time, just because someone was doing it. And I tried playing a few days ago, and bam, there he was, bitching his mouth off to everyone who would listen, and boy did he make sure I got reported. And I never said a thing. That is just how bad Nexon lets it's servers get on that game.
(Note to Admins: If you want me to censor the post or something, please tell me. I'd like to make sure my forum health meter stays as low as it is.)