An easy idea would be to create a subsection called "For sale - feedback" where each registered seller can have their own:
[Seller name] feeback
post where users can leave their feedback. This section (watched by moderators) would be easily searchable and browsable by username. What buyers are interested in are the most recent feedbacks and those can be found from "last page" backwards. Also, "good" sellers could link that post in their signature and/or encourage for feedback after a transaction there.
This, like the eBay feedback mechanism, would lead buyers to leave a feedback and sellers to care about offering a good service.
It would take a while for people to get accustomed to the idea but it is something that can benefit both sellers and buyers.
__________________
2013 PW 370Z Touring+Sport, NAV
Tint 35% side, 18% back | RJM clutch pedal | ZSpeed SS lines | Stillen Gen3 CAI | Fast Intentions HFC and TDX 12'' CF CBE | UpRev
|