While it may be more difficult to spot someone who is botting within the parameters of the game, (there is no way that a bot can keep up a convincing conversation with a GM, and if your PC logs out in response, then they'll probably flag the account to either be watched or ban you outright), I've seen cheaters who literally teleport instantaneously between Karakuls in Coerthas. A GM can see that, and all you would have to do is call one over in person in order to ban the person outright. I've also noticed what seem to be botters in Coerthas who are spiritbonding, but since they're stationary, it's impossible to tell whether or not they have a script.
