Here's the gist; a commerce forum is set up in which staff, trusted members agreed on by staff and possibly premium members could have a single thread each to sell their things. All transactions would be at the risk of the people involved and we wouldn't step in under any circumstances. Unless the system is continually abused by a user, in which case it's ban as usual.
I've seen a system like it working on another site and I've shown Logan how it works. He's considering it at the moment but I thought I'd gather some community feedback.
In each thread the OP lists the wares and people can enquire publicly in the thread. Sales are carried out through agreed means though we would certainly always recommend PayPal and not to dispatch out-with your own Nation. PayPal email addresses can be sent via PM but that's literally all the site has to do with the transaction besides listing your wares.
What do you all think of this idea? Is it a yay or nay?
Here's a mock up screenshot: