It's addressed in paragraphs 2.F and 11 of the RCI Points Terms & Conditions as follows:
F. Commercial Use Prohibited. Use of the Network and/or RCI Points is for the personal use of Members and, if permitted, their guests, and neither Members nor guests may use the Network or RCI Points for commercial purposes or monetary or other consideration, including, without limitation, auction, barter, rental, raffle or sale of RCI Points, Confirmed Exchanges or Guest Certificates for example, and RCI reserves the right to limit the number of Transactions by a Member. Any commercial use shall be grounds for immediate termination of Member’s membership and cancellation of any Exchange Request, Confirmed Exchange or other benefits of the Network without prior suspension of or notice to the Member, and any other rights or remedies RCI may have at law.
11. TRANSFERRING RCI POINTS. The Member may transfer his/her RCI Points to another Member for a fee for use in the transferee Member’s current Use Year subject to the Network Documents which may include having to first save or extend the transferred Points for a fee. The transferee may return transferred RCI Points back to the transferor for a fee, but not to another Member, however such transferred Points may need to first be saved or extended for a fee. RCI Points transfers shall be deemed invalid and the Points forfeited if there is compensation or other consideration between the transferor and the transferee for the transfer. If the transferee subsequently cancels a Reservation made using some or all transferred RCI Points, the transferred RCI Points shall be returned to the transferee’s account. The Network Administrator, in its sole discretion, without advance notice may terminate, suspend, or limit the ability to transfer or to use transferred RCI Points, including, without limitation, limiting the number of Points that can be transferred, or the total number of transfers a Member may make.
That being said, you will occasionally see want ads for RCI points; the conventional wisdom pre-COVID was that the going rate was ~ a penny a point.
