I honestly don't even understand what expectations are at that site. I just offered 5 cards for one, based on what I felt was fair value (3 decent current NHLer YGs, a Marner dazzler and a Matthews NHL Worldwide) for an exclusives /100 card of a guy who has one game in the NHL and never got a shift. and will likely never even play in the NHL again. All current year. I get that I was asking for an exclusives card, but the quality AND quantity I was willing to trade has to mean something. Not only was it declined immediately, which I would have accepted, but then the guy leaves me a one-star rating. I gave what I thought was fair monetarily and also what was more than fair in quality, and for that I get a bad rating.
Why not just say no if you think the offer isn't enough?
I have now transferred all my cards to COMC. I'm done with that place.