I'm surprised most people jumped on the Martin Fury controversy in my other post and completely ignored what my guild was going through. Frankly, the guild situation has been a lot more frustrating.
After guildmates talked to the offender's guildmaster, who plopped some platitudes down but did nothing, they submitted a group ticket to GMs, who plopped some platitudes down but did nothing. So, our last resort, an officer posted a public Zuluhed post warning about the master looter (Op) as a ninja.
The most promising part of the adventure was when Equilibrio told his GM that the master looter likely lied to his GM to get Calamity's Grasp (by not mentioning he lost it in a roll) -- Equilibrio's GM was pissed.
But nothing came of it.
On the other hand, we can probably report the master looter some more for continuing to harass our guild. He's sexually assaulted an afk Equilibrio (screenshotted), got Morphy kicked from an Archavon run (Morphy got removed randomly and then Op whispered on an alt to laugh at him), and is bragging about Calamity's Grasp with his guildmates in trade (and taunted my guildie for asking them to be quiet because my guildie's best friend was supposed to get that item) and would keep bragging about it in our vent if we hadn't banned him.
Harassment takes an especially vindictive type of person, and it becomes personal in a way ninja looting doesn't. I wanted justice for my friends when it was a simple ninja loot case, but now I just want Op to die in a pile of flaming poo. He's being a massive jerk about something he did wrong, and it just makes you want to hit him.