Something similar was suggested for physical KS items that folks may not need/want but others would. There would need to be some set rules, certainly. Below are the rules we have in place for a Doctor Who forum I help moderate, if you’re looking for ideas on how to run such a section:
SECTION GUIDELINES: Shada
If you are a fan and are selling legitimate merchandise like pre-recorded VHS or DVDs (not off-air recordings), CDs (legitimate purchased ones, not home-burned), books/novels or otherwise, then please use the Shada section. You are welcome to post information there, including any links to eBay Auctions or other auctions you are running yourself or for someone for sale items. Postings are permitted for ANY legal items whether related to Doctor Who or not. Marketing posts are NEVER allowed in any other areas of the forum. Any posts outside this section that offer products or services will be relocated here when found. Too many violations of this guideline may result in administrative action.
When creating a thread, we encourage you to use THREAD PREFIXES. You are not allowed to use this forum to buy, sell, trade, or even give away for free off-air recordings and/or downloads. This goes for Doctor Who episodes, reconstructions, burned audio CDs, MP3/AVI files, or any other items. Retailers are allowed to have threads with the “Retailer” prefix. We will pin them when we see them. However, they will be unpinned if they have no activity for 4 months.
No automatic revenue-generating links are permitted anywhere on the forum (except for the forum’s own Amazon UK link). “Affiliate” links to vendors such as Amazon (or any other kind of affiliate links) are not permitted. Also, links to eBay auctions for unlicensed and/or illegitimate items - including links that point out unlawful sales such as sales of reconstructions or unreleased episodes - are absolutely not permitted. Even if you are trying to bring it to someone’s attention, we will not allow links posted here.
To be fair to everyone, do not create more than four new threads in this section in a 48-hour period. The staff will arbitrarily delete any threads that violate this rule. It is highly recommended to start a single thread when selling many varied items. Merchants who have dedicated pinned threads should not create other threads. Violators of these policies will lose their access. The Directors of [redacted] believe in supporting copyright laws as fiercely as possible.
New Shada rule beginning October 2014: Anyone offering any item for sale or trade MUST have the item in their possession. Upon receipt of more than one complaint that this rule has been violated, the seller will be barred from Shada, and there is no recourse.
[redacted] provides Shada as a courtesy for people who wish to engage in fan-to-fan bartering but does NOT provide any additional framework or support for such transactions (for example, we do not provide any dispute tracking or claim investigation); thus, our judgment on blocking Shada from any particular member’s access is final.