An anonymous reader writes: If you play games online against other people, chances are you've come up against somebody who's obviously cheating. Wall hacks, aimbots, map hacks, item dupes — you name it, and there will always be a small (but annoying) segment of the gaming population who does it. Many of these cheating methods are bought and sold online, and PCGamer has done some investigative reporting to show us rule-abiding types how it all works. A single cheat-selling website manages to pull in $300,000 a year. The people running the site aren't worried about their business drying up, either — game developers quickly catch 'rage cheaters,' and players cheating to be seen, but they have a much harder time detecting the 'closet cheaters' who hide it well. Countermeasures like PunkBuster and VAC are sidestepped quickly and easily.