Obviously online communities like World of Warcraft, Ultima, etc. are technically games. They're fun, full of magical creatures, and largely involve going on adventures to kill hidious monsters and collect treasure. But, as the article states, when you attach real-world monetary value to that sweet new battleaxe, your pile of Gold, or your ability to summon ice storms, things get sticky.
Logically, when you are in a competetive situation in which the outcome will determine whether or not your wallet has the potential to grow fatter or not - you're gambling. Now I fully understand that many, if not most players of these games don't give a hoot about how much they could pawn their enchanted Orc helmets for, but then again, those folks probably wouldn't be as concerned about cheaters (it would amount to just another part of the game). But there are obviously plenty of folks out there who do make bank after selling leveled-up characters, or worse, stealing other people's loot.
If you are at all concerned about dollars, its technically gambling, not gaming. I have no problem with gambling. But usually, there are very strict rules in place and an army of security to keep people in line and the cheaters out. That isn't what happens in online gaming, primarily because the creators figured that most players would play for fun, and not mix the real and fake economies. Thus, my advice; play for fun, not for profit, and consider cheaters just another in-game enemy to tangle with.
Slaughter the goldfarmers!