There's a C-Lister in northern VA who has listed a low end mid-80s red Centurion for over two years asking between $225 and $275. Offers to trade, too. No repairs, no drive side photos, nothing noteworthy. The bike is worth $70, maybe.
I've often thought to write to him to straighten his head out, but haven't.
Sometimes, I've even thought of responding to his ad, visiting to see the bike, and explaining to him what he has, and what's needed to sell it at his price.
Then, most recently, he's been looking to trade it for guns. I think I'll just leave him alone...
I certainly wouldn't flag him. Let him do whatever he wants. It does no harm that I can tell.
Phil G.