With close to 700 BST transactions under my belt, only a couple dozen have been trades. Trades are fun to negotiate, but finding someone who wants what you have and has something you want makes it a lot more difficult than buying and selling.
The idea of trading for a pile of cards, most of which I don't want so that I can then trade 90% of the stack to someone else who doesn't want them seems problematic to me. It might work if everyone is building '88 Donruss sets, but who is.
I would think that if the idea were successful and I passed my trash to someone else in a trade, sooner or later I would receive that very same trash in return in a subsequent deal. I don't have one of those gerbils running in a wheel and going no where, but it might be more entertaining.
wheel.jpeg
As they say, what goes around, comes around