This wouldn't work, with all of the trolls on here and such.
We have a "buy/sell/trade" subforum on srtforums.com that works fairly well. Users are required to have 50 posts before they are able to access it, have zero warning points, and if there is an issue, they are labeled a "scammer" and forum rules require all sales are made through paypal so the buyer is protected if no product is delivered. There is also an itrade score associated with each person's profile that lets people see their past sales ebay style. They are divided by region (and sub region in the US) and pictures showing the date timestamp and the seller's username written on something in the frame are required. heavily moderated, each thread has to be approved by mods, who look at every picture and all of the details prior to approval.
Ebay is horrible so many cheaters on it. CL is surprising a lot better but I go with Amazon myself
Found a ridiculously good deal on a GCN with 20 games, two controllers, and a memory card for $30 on Craigslist. I already had a gamecube, but I couldn't pass it up. Still have the spare.
Edited by routerbad, 08 April 2013 - 10:43 AM.