1911 V Nickel, Au? MS? Or Neither?

It's a grey area; obviously we can't "regulate" it. Me personally, I agree with your opinion. Give the poster fair warning you'd like the coin too, allow them dibs for a little bit to contemplate the purchase. No doubt in my mind it's happened here more than once, but generally CCF's membership does the right thing.

This is numismatics. Overthinking is required.

I don't know if it's been cleaned or not, but some of the best here didn't think so, and only one person mentioned it. But just to muddy the waters a bit I did buy a coin from this seller in the past that turned out to be "polished." The good news is that he refunded my money plus some of the grading fees....so at least he's a stand-up guy.

One of the issues here is the darned Best Offer thing. If it was a Buy it Now, there wouldn't be a problem....either buy it or not.

IMO if the coin is still available after a few days, it's fair game again, that's plenty of time for the OP to take care of business.