Erm. If the starting point of negotiation is "we put zero monetary value on your contribution but want it" then walk away. Absolutely justified. What's in it for him?
Monetary value has no bearing on quality of the item desired. Any good buyer will try and get as much as possible for nothing. Because you come in at zero doesnt mean it is valueless it means that the buyer is trying to get it for nothing.
Monetary value has no bearing on quality of the item desired. Any good buyer will try and get as much as possible for nothing. Because you come in at zero doesnt mean it is valueless it means that the buyer is trying to get it for nothing.