Tell me about it.
State "no offers"
Response; would you take "1/2" the stated price?
I tried selling an as new electric stihl strimmer. Cost me £120, wanted £80. I had about two dozen enquiries from women who wanted to offer a fiver who only saw a strimmer and couldn't tell the difference between this and a £20 b&q craptastic.
Then there's the ones who throw a thousand questions (half would be anwered if the read the blasted post) before either "I've changed my mind" or worse, and more commonly ghosting you.
I was selling a dinghy and some fella expressed serious interest and asked for a photo of the rudder as I hadn't included one. I duly obliged, dug out and cleaned it and sent him a picture of the perfect rudder only to get zero acknowledgement or further interest. I don't know what he was expecting. Did he want it damaged? Was it some porn fetish thing?
The lad who eventually bought it admitted he wanted to buy it for the trailer (which was worth more than the boat and I wasn't asking much for it). No skin off my nose. We agreed a meet and he spent well over an HOUR fastidiously inspecting every minute detail of the boat, sails, ropes, pulleys, dagger board, rigging etc before deciding he wanted it.
Engineers are the best - advertise a lathe, answer a couple of questions, arrange meeting, no quibble, have a good chat, hand over cash, help to load, gone.