The only way to reliably do this is to be able to leave feedback on the completion of a trade, same way as eBay works. That means you also need a way to track the trade/completion as well has have a fair and reasonable method of leaving feedback. On top of that you then have the potential of needing to have a method to contest said feedback and review it. This all takes time and resource.
The Xunlai area allows you to trade to the users that you want to and ignore other users. If you feel like any posts in your threads break any of the Xunlai or Forum rules then you can report them and the mods will investigate.


