When ending a MarketPlace listing successfully, Pinsiders can invite user feedback from the other party. Marketplace feedback cannot be removed, but can be responded to by Underspin.
New! It is now possible for any Pinsider to leave feedback, without an invite. There are some checks in place to avoid abuse and "fake" feedback.
“Excellent member of the community! Went above and beyond describing condition and detailing history of the game. Went as far as to meet me half-way! Couldn't ask for a better interaction and hope to do business again. Highly recommended! See you at the zoo next year!”