Ankur,
I posted that you forgot to put a return policy in your thread. That's what the mods have told us to do when a seller is violating the rules of the forum. You'll find that's all I've posted in your thread.
This is a pattern with you. You aren't the victim. There are no vendettas against you. Your actions and your behavior raised valid, specific, and earnest questions.
The fact that you bought a book from Heritage a week or so ago, that was graded an apparent 1.5, removed a patch on the back cover, list it back up for sale as a now unrestored book, but still a 1.5, failed to disclose (until pressed and cornered) that there was also a chunk out of an interior page, claiming it was 100% complete on the interior, going so far as to say you went page by page, when you knew or should have known it wasn't complete isn't someone doing something TO YOU.
These are your actions. Rounding off the corners of the description, gilding the lily, disclosing some things but leaving out others. Can you really say that calling this book "complete" more than once is not deceptive? Flat out.
Then you bristle when people call your actions into question? That's a vendetta against you? Really? You're the victim here?
You want to talk it over at Comic Art Con? What explanation will you have for how you sold the Cap #74 with the moving target of a grade, or how you tried to sell this book the way you did? And these are the first two issues you've had, is it? Never had problems with artists alley creators? Any issues when doing art deals with other collectors or dealers? You think you can convince me that poor you is just the victim of multiple, repeated, coincidental, circumstance?
I assume all of those problems are someone else's fault, right? Not your actions? Take a look at all these issues and questions that pop up and you'll find the common denominator isn't anyone other than you and the choices you've made.