I know people who have gone out of their way to blacklist other people who undercut. They never cuss them out or harass them but, I still think it's funny.

However, on the fact you undercut or ANYONE undercuts like that, it pisses me off too. If you see the item sells for X price already up on the board, why make it less? Why tank the market? The reply, "Because I can,." is a rather piss poor and shitty attitude to have just like the player who called you out.

Just wish we could call people out to the GMs and such for being jerks and tanking a market. but it only seems that people are allowed to be asses, undercut and not care about the rest of the community trying to make a buck.