I've only ever sold parts on Ebay and they have all their buying/selling all set up for you so it's all secure. Has anyone ever sold/bought through this site and if so, what's the best way to go about doing so?
On this site, you PM the seller and set up the transaction. Any transaction is non secure. You believe the person and make the transaction or don't do it. I believe there is a place for transaction feed back although I've never used it.
I've bought, sold, and given away free on this site. All good smooth transactions.