How would PIFing something you hate be ethically wrong but eBaying it would be ethically correct? You lost me there.
I think the disassociation is what makes some folks see it as ethically alright to charge money for something that they wouldn't give away to their B&B brethren. Us= B&B, Them =Ebay. If someone feels ashamed to give something to their brothers here, they might think it's alright to sell it to a "stranger" on Ebay.