There are several different possible implementations:
1) Artisan keycap trade/sale subforum
2) Keycaps trade/sell subforum keycap for all kinds of keycaps - artisans, key sets, spare keys
3) Separate sections for built keyboards (1), parts and accessories (stems, springs, stabs, etc) (2), and artisan keycaps (3)
As it stands, the classifieds section feels cluttered to sift through when searching for specific things. The search function can of course be used, but can often miss items based on specific wording. With a large community growth into many areas of keyboarding, perhaps the classified section should be modified to better accommodate that
.
While I see this has been suggested before fairly recently, it was put forth in a less constructive way (imo).