this is the details which a seller has to give before they are allowed to sell, this is so you are not buying from just a username, so if anyone is a buyer and something goes wrong then at leased we know who the seller is, it stops just anyone comming on site and selling , I think it is a vast improvement from what it was, and has been done to try and help to get the best for the members, and I personally think that its a good system, I dont really think its there for a garantee,but for letting us know who sellers are rather than letting you deal with a username.