Yes, I'm not arguing people's opinions of the weapon. The 30/30/60 stats are terrible compared to other epics stats. In addition, a delay of 24 was awful for threat on live. On here, people don't seem to use tanking weapons without procs; whereas 2x Lamentation held aggro pretty well on live. From a design standpoint, it is a disappointing epic.
It get's difficult because I don't know the server's code. I don't know what code is residual that just hasn't been noticed. For example, proced stuns eventually (stealth added) got a 400 hate cap on live for their stun component. Casted spells did not have this cap. Some spells created more hate if they were a class that could cast them. There are exceptions to this rule like Static Blow. There's a ton of random shit like this that you run into when you're trying to figure out threat. Even worse, we don't know when a lot of this stuff was even added to the code. Worst yet, this server is designed to mimic Kunark on live (and does a fucking awesome job of doing such).
If you're bored, take a look at this:
http://giline.versus.jp/shiden/stun_e.htm
Now, that's kind of a tangent.
What I am arguing is the proc's aggro from a basic mechanics standpoint. If the proc is indeed 100 DD and -11 AC, it is going to give the threat of those 2 components (from what I've read/experienced, ATK debuffs aren't much threat). This really isn't saying much. I can link you dozens of threads that will tell you AC debuffs are fantastic aggro.
Or do you believe that this weapon is the lone example in the history of the game of a proc with an AC debuff that wasn't large aggro?