QTH.COM Swap Chat

I cannot understand why anyone would post a item for sale then never respond to someone who wants to purchase it ! One seller here has a item posted and I wanted to purchase it but He will not respond after several requests and many days ! If someone lists and sells a item one would think they would have the common courtesy to remove the listing. But guess they got what ever they wanted and to Heck with everyone ! Sad folks who do this.