Perhaps the good Doctor is involved but, some members may be using the database like I do.
I have 3 (three) collections; Canadian Cents, Canadian Colonial Tokens, and Circulating Countries pre-1962. All of them are set to “not for swap” and I own these coins.
I have a collection; Required Circulating Countries pre-1962, which is set to ”for swap". This is a concise list of the coins I need to get (much quicker to copy / paste into search bars). When I get a new country I delete it from Required and add it to Circulating Countries pre-1962! Unfortunately, Numista members may be under the impression I own this coin (I might one day).
Hoping this is helpful.
It ain't what you don't know that gets you into trouble. It's what you know for sure, that just ain't so. Mark Twain