I searched [by ISBN] a series of books I was considering posting.  They came up as zero copies in the system, zero wishers.

When I posted them, four were immediately "pending buyers remorse".

Huh?  There were wishers after all?  What did I miss?

Probably a bookshelf/wishlist on hold, but with that book on autorequest.

I think when bookshelves are on vacation hold, the book is not counted in the "Wishers" count that you see on the listing page. (Individual books on hold on a wishlist are definitely not counted in the count).

But when you posted, if they were on autorequest, they would have been immediately requested from you.

That makes sense.  These are the kind of books that would have one wisher, who has probably been wishing for years.  I wasn't expecting to send to many out, but c'est la vie.  Someone will have a happy New Year.

May they all be going to one member. 

Three of them are.  The other four, well that's how it goes.   At least I have some 2.69 and 3.17 "stamps" from the APC so I don't have to go to the post office.