I think there is also the issue that until you have added 1 coin yourself to your swaplist, the number of coins of interest to both parties is not shown on your profile page (
https://en.numista.com/echanges/profil.php?id=74058). So just add a (virtual) coin for swap in your collection ... a Lincoln cent for example ... then I can for example immediately see how many coins in my swaplist would interest you.
You can also open a swap with me, were you can mark the coins on your wishlist (with a heart) that you would want from me. Like that I (as a potential seller) can immediately see what coins (by type, year, mint) interest you.
good luck!