Awesome! I submitted this to the New Feature Tracker (NFT) back on March 22; looks like it was implemented on May 10, actually. The idea is to combat the fear of retaliatory negative feedback so that more members will feel comfortable leaving negative feedback when it's warranted. That way, if a member responds in retaliation, the innocent party (for lack of a better term) has a space and opportunity to defend themself and tell their side of the story for others to see and be more informed when proposing a trade
I'll never quit collecting entirely, but I am downsizing. Check out my COMC store and help me thin out what I don't want so I can buy cards that I do want. See something you like? Send me a message on here, and we can knock the price down quite a bit. I'll even take a bit of a loss if it means getting you a card you really want.