The OP was openly selling fraudulent accounts, and is therefore at the very least stealing from the companies whose accounts he is selling. More realistically however, he is selling accounts that will likely stop working in the future and that will open up the possibility of the users to legal consequences down the road. This is much different then a violation of the TOS of a company.
Then you would have to visit the Digital Goods section and take a look at those yearly/lifetime subscriptions for a few dollars. They are all obviously cracked/hacked/stolen regardless of the seller stating so or not.
There is always the possibility that the sellers are someone like BPB, or outright have an extra subscription they no longer want to use (although I would think there would be few of these cases). I agree that this is the case the majority of the time, however I like to give people the benefit of the doubt. In this case, the OP outright admitted to selling cracked/stolen goods/accounts, which is different form most threads in digital goods