@Chanix that's a nice spin you try to put up here but not how it goes in reality
anyone can report a player for bought account, this will be investigated by NC including the player that did the reporting to counter false accusations and any & all acounts found to have changed IP/Country/Paypal/CreditCard etc. or gone from fluent English to only Greek/Portuguese etc. will be banned
account sale is banneable and the seller & buyer will have all accounts associated banned, go read the eula.
the caveat here is that NC doesn't bother on their own to go after these kind of issues, only after a report is made will they bring down the banhammer