Having some decent luck with an approach to "fake offers"
I've been complaining about non binding offers for a while here, and I've had a bit of luck with a new system of handling them.
Rather than accepting a good offer and reaching out with a handshake and possible shipping times, I don't accept, counter, or decline, I just message the buyer and say that if it's a real offer to let me know and we can discuss.
This has resulted in a few outcomes:
I get ignored (most frequent, obviously). After the offer expires the "buyer" gets blocked.
a real person on the other end gets a little flustered and starts acting like there's something wrong with my listings/demands measurements, etc, then eventually stops responding. These people were never going to buy anyway.
Actual sales to someone who is happy to be talking to a human! (And I accept their first offers, which are often good ones.)
But the real win is that people or bots probing for my lowest price with no immediate intention to buy don't get that information, because I don't accept, counter, or decline the offer until they talk to me.