I'd like to see a feedback forum that is separate from the vendor feedback forum. One for dealings with businesses, the other for hobbyist to hobbyists deals: trades, sales, etc.
That way, those who prefer to only buy new from an establsihed business don't have to wade thru all the "thumbs up for fishsmokingcat, good dude!" type of stuff, just to see what the experiences have been with one of the sponsors or any other on-line retailer.
Might be a bit tough to keep separated sometimes, but hey!, that's what those moderators get paid all that big money for!
