I look because I'm looking for something. But this forum covers such a wide geographical area, your location can be an instant "nope" if you are too far of a drive. If you are close enough and have what I want, next factor is price.
From my experience, if enough people are seeing what your selling and things don't sell, it's because the price is too high. We unfortunately can't expect to get anywhere near fish store prices when doing private sales. If you want to sell and aren't getting buyers, you cut the price and keep cutting until you reach the price point that sells.
Take your Flame Hawk, I'm looking for one but your location is a super long drive. If you were next door, I would be a buyer, but because you are so far away you would need to give it away for free to get me to think about driving that far.
If you want to move them quickly, you just need to find a price point between where your current prices are at and free to get these things out the door. It sucks, but that's the way it is.