I'm not going to get involved one way or the other but what I will say is that I have bought and sold items off this site and have never had any problems, I have tried to be honest with SD members and they have all treated me honestly and very well. I have even taken a member on trust for a rifle I was selling and he turned out to be extremely trustworthy and honest and is now a very good friend.
As for once fired brass I tend to give all my 270 brass away and even pay the postage - All I ask in return is that the recipient puts a small donation into a charity box of his/her choice - That reminds me, I have another 100 to advertise and give away now!
It is a shame when deals go belly up and cause ill feelings!