FWIW, I reckon you would be justified in deleting this "out" clause.
If you are totally imppoverished and can't pay, buy me a rum next time you see me.
It stands to reason that if someone has just sold $100 worth of gear thanks to the reach of crew.org (which you paid good money for), then they should have $5 to send your way. Rum is delicious but doesn't pay the mortgage.
Perhaps a different story if they are selling up to pay for a life-saving operation but I would imagine that would be the exception.