So... Do you have anything against Quickseller? The man is doing his best to protect people here from possible scams so you can't blame him.
You have already said it.
prove them scammer
I personally don't like people who leaves negative trust fastly without any warning but I think he has a reason.
Well it seems quickseller is quite shady actually and lets not forget he sold default trust accounts which should make him basically a scammer or someone with really low morals