I will say, having just been one of the undercutters, there is a very good reason to do so. its predatory, yes. its mean to your fellow sellers, yes. but to me, it was worth it.
Today, I finally got tired of undercutting on my mastercraft market. people have been undercutting every 20 mins, 1 gil at a time. I had 30 of them in supply, and they were going for 340k apiece. I listed 20 of them at 275k. someone undercut me, and then I listed all 20 at 225k. they undercut again, and I reunddrcut to 180k. they then undercut to 170k, and I bought all of them up, and repriced my now 70 mastercrafts at 320k. and no one undercut.
MY market. *growls*
