+1! emphasis added !
(1) in 99% of circumstances, the lowball shot across the bow is just a harbinger of a crummy tire kicker trolling, …. with no tangible intention to actually buy it unless he stumbles across an uninformed seller making a mistake or desperate to sell fast in the extreme , …. = don’t waste your time and don’t feed the troll for these fairy tales .
(2) Buyer is now egregiously insulting Seller’s knowledge of fair and proper audio market prices and ignores all fair value decorum conversation = IMO negligible odds of every striking a deal. IMO this is a good reason to just block him out and remove him from every contacting you again which removes a habitual time waster from your orbit .