Rework the market system to allow purchase offer listings and eliminate undercutting

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The Retainer system is probably the biggest annoyance. On WoW I could just go to one page and find all my sales and deal with it.. I don't recall being able to just adjust I think I had to pull it off completely and repost.. It's been so many years though so I don't really remember. I played star trek online and its exchange was/is god awful. So I guess overall I'm just glad it isn't anymore annoying that it is. When you have tons of retainers that can certainly get to be time consuming and if I had more than 3 I probably would not keep up on my sales as often. Unfortunately a question was asked of Yoshi regarding retainers and the answer was not promising.

Oh Definitely, I dont have additional retainers for sure. Im not condemning anyone that does either since its a liability purchase. Would you rather than retainers being so convoluted, it might be better to have everything rooted to a single seller?
That makes a lot of sense, in a way to me, but a little less for anonymity sake when selling...hmmm
Also: This is an edit, my original question was super dumb.