Please don't take this too personally, but the seller has over 1000 posts here and has really established himself as a member. I do not believe your question has much merit and if there is any bad feeling about buying something from this member or any other for that matter, then perhaps you should pass instead of engaging other members into a character debate.
Asking for references like this seems fruitless. I believe if you are at all weary you should ask the seller for references. I'm going to bet he has at least one or two.