It would be good if we could rate users on this board and maybe write a small comment too so we know what people we safely can exchange bitcoins with.
I like to trade with Paypal and since Paypal got that crazy chargeback-policy many users are afraid that they will get ripped off. That's a good reason why such system is needed, so we can find honest traders.
Of course I understand that this system might be abused but if a new user got a good rating & comment from a ~2000+ post user then I would feel a lot safer trading with that new user.
A rating/comment-system where both users have to write about each-other before the rating & comment shows up would be good, or what do you guys/girls think?