People are never going to learn that sites like Zygor Guides, Dugi, and other premium site actively search out accounts that leak and share the guides and close them down thus cutting off OUR SOURCE OF CURRENT UPDATES! They use methods much like Whoknowsit did by embedding an encrypted tag somewhere with your username or account number so they can trace the leak back to the account. Just as Whoknowsit did.
It showed what items were on the rise, which ones were stagnant, and which ones were going down. I don't know how accurate it is since I am not familiar with my realms AH yet. I put some things on the AH with the Zygor suggested price and sold about 5k worth of stuff (I had a ton of MoP gems/herbs sitting around). I did use TSM suggestions as well and for the most part they seemed pretty close. But I did do an AH scan with Zygor before posting.
After my purchase of Zygor Guides, I have made a discovery of the option to manually install the package given to the customer by a link. I sent the link to my friend, and he got the most recent version of the addon. This greatly surprised me, in which case I decided to tell the fellow members of Se7en Sins this exploit. This is completely legit, no scams, no jokes, please keep this discreet as possible so that the administrative team does not fix this exploit for your benefit of not having to purchase the addon like I did.