Let me make some things clear to you since the TOS also states. "The TOS can change at any point without the knowledge of the player base." The reason why they say this is because situations change, new violations emerge ECT. They arn't going to keep updating the TOS and they leave it vague for a reason.
Monopolization of NM/HNM's - Policy is not as clear cut as you say it is. The reason why is obvious. New situations emerge. This policy was worded extremely wrong because if you speak with a GM (LIKE MYSELF) they will tell you, "Only way to monopolize an NM/HNM spawn is to do one of the following to prevent players from being in the same area as the NM/HNM; MPK, Harassment, or holding of the NM or it's placeholders." You call a GM and say "SO and SO is monopoloizing the Stroper Chyme." The GM's official response is, "What are they doing to monopoloize the spawn." You reply, "They have been there for 24/7 camping the same NM over and over for months." GM's official response, "I'm sorry, but that is not monopolization. Monopolization is <insert policy above>. Do you have any other matters I can assist you with today?" And that ends the call.
Gil sellers - Gil sellers while players think this is cut and dry simply because a player states he is a gil seller he is guilty of buying or selling gil. WRONG. It's just as you guys don't believe me here that I am a GM because I say I am a GM. Just because he says he sells gil dosn't mean he actually does. You need to have a complete offering of a transaction to make it a violation. "I'll sell you X amount of gil for X amount of dollars US currency." this "Do you want to buy gil" or "I sell gill" or " Xi Sue Mi Jo Ti Gil? Do you need it?" crap dosn't work. It has to be a clear cut offering.
Previous actions - 800+ accounts were terminated (this said on the information section) but what isn't read is they wern't all terminated for "Gil Selling" or "Monopolization" as the information section said. They were all terminated because of repeat offenses in MPK, Third Party Software, Harassment, or even offering to sell gil. Not because they were there 24 hours a day. You going to go and get someone arrested because they sit outside a candy store 24 hours a day, and right when the store opens they go and buy all of YOUR favorite candy? No, it won't happen. The cops will laugh you're ass all the way to jail for filing a false report.
As I previously posted Quinsisdos, I'm not "Deepthroat" nor do I share is "words of wisdom." What I can say since I am still under contractual obligations to keep my trap shut, because they are afraid people like me would go out there and do as "Deepthroat" did, is that not everything SE tells you is exactly as it is worded. They are very political in what they do, and for every 1 thing they tell you, there are a dozen things they don't. Keep that in mind when you go to claim an NM, and there are STILL a group of 2-6 Chinese Gil Sellers laughing at you because they can claim things before you and they can still get away with the SE's and Your form of "Monopolization"