That is really funny. How often do we ask people or have even been asked by SE and GMs to blacklist gil sellers? And we are in fact harassing their means to generate actual income and put food on the table for their starving kids. I do NOT think you have grounds to consider the act of blacklisting or even asking people to blacklist specific trouble makers to be harassment. And coordinating a strategy to not res the early pulling troll is not harassment because we are always free to communicate with each other in game about how we handle an in game challenge. This is fair game because the early puller troll is really playing PvP against the rest of us in the hunt LS and the larger community as to who get credit on the elite mark.
