There is a swap-meet section ... so obviously Brett allowed for such postings.
Honestly, I'd prefer it if it were restricted to a single post at a time ... rather than a half-page of individual threads for individual items. Maybe he can just start a single thread and bump it every time he has a new item, rather than having a separate thread for every razor he's selling. Posting here probably gets him to his niche market ... but it does get in the way a bit.
Complaining about large amounts of "For sale" ads in the "Swap meet" forum is like going to a KKK rally and complaining that you are annoyed at all the rednecks who keep showing up to those things.