Hello Prepper Boy,
There is a buy-sell area, called General Classifieds (formerly Members Classifieds)
All non edged tools items - So no Axes, knives, billhooks, chisels etc; they go in the edged tools classifieds.
bushcraftuk.com
There is a separate Edge Tools area:
The classifieds section for Axes, Knives and other edged tools
bushcraftuk.com
To start threads in these areas you must have paid for membership. There is also a Full Member Classified area, which is not visible to anyone who is not a paid member. It isn't "secret" as you put it, but since you don't have a paid membership, you can't see it
.
We don't really have secrets here. This isn't a "survival" forum, and if US style survivalist prepping is your main interest, this forum might not be a good fit. My advice would be to read a bunch of the threads here to get a flavour of the place rather than assume that lots of people here are into "survival" and prepping.
Sales areas are there to sell gear. I have seen a lot of "normal" people, you know, people that just like hiking, camping, canoeing etc, but maybe aren't into knives and 101 ways to light a fire, join the forum just to buy an item they found through Google on our Classified area. Our paid members benefit from this wider market. The Full Members Classified area exists for people to offer items for sale within the community, but I doubt anyone posting there does so because they want to prevent "normal" people "mistreating" their old gear.
Best regards
Chris