I just sold a contract through the board sponsor and I never requested they add the comment of “Only Full Asking Price Will be Accepted” but it was on the listing when they sent it to me for approval. I just went with it and figured if I didn’t get any bites in a few days I’d ask them to take that off or lower the price slightly, so I personally would have entertained other offers. They did advise me to change my listing price by a dollar since another listing of the same resort and point qty was just listed and it could make it more appealing or stand out, so I did.
Two or three days later another agent contacted me that her client offered full asking price. I don’t know if there were other offers placed in those 2 or 3 days or not, the only time I heard something was when it sold.
I’ve only ever seen that addition of full asking price on small point contracts and listings that were decently priced already. I think most people don’t realize the value (or lack thereof) of their contracts so they just go with whatever the agent says. I’m pretty sure this exact contract when we first purchased was one of those and I offered $2 less then asking (lol I was new to
DVC and not on on the Disboards yet so it felt like a win to me

) and the agent said the sellers didn’t really want to negotiate and just sold a second contract and full price but ultimately accepted mine, woohoo $2 off!
I think it’s worth a shot to offer a fair price on one of those listings, like a previous poster said, worst thing that’ll happen is they’ll say no.