I think the biggest issue for me is closing threads. I've responded to a few posters and asked them politely to close their threads and they've been more then glad to. They had either forgotten or didn't know the protocol. I think with some gentle nudging it this sub-forum could evolve into something a bit more organized.
just make it a user review website, like ciao, dooyoo, etc. That way ratings are difficult to fake, (nearly) no trust needed because 100 different people rate a single business and its hard to corrupt AND you dont have to do anything besides keep the site running and kick trolls out.
Not familiar with either of these. Care to explain.