It's a 'higher end' site where people tend to sell high value items including; property, cars, art, fine jewellery and collectables. You may find yourself a buyer there who doesnt lurk or actively use the forums.
Either way, you can continue posting here. As long as there is demand, you will manage to find a buyer. It may take some time but eventually you'll find one. Maybe by offering Bitcoin discounts you could try and entice others not in the cryptospace to buy your items using BTC.
Thank you for advice. Bitpremier is the only portal to sell? Wow maybe I should start with portal similar to bitpremier. Maybe here is the business:)
I recommend that too