I also would not want this.

Its bad enough that crafted items show our name. I got harassed by a few players whom I undercut, to the point that they falsely accused me of RMT in order to get me out of their markets. They also made a habit of following me around while I was gathering, and trade locking me when I tried to teleport through my nodes. blacklisting helps, but it doesnt stop them from talking about you to other people, and actively paying people to NOT buy from you. Showing player names would make this even worse, and open this type of harassment up to more markets.

TL'DR: please dont do this. it will be bad.