The Guild Conquest awakened the Sleeper for the first time and promptly got banned for doing it. Verant claims they did it by using an exploit. I'll leave it up to you to debate whether or not that is what happened.
Here's the explanation they posted on their website:
We were fighting the 4th warder (ventani) and had it down to 60% or so when kerafyrm spawned, and wiped us out. Kerafyrm then killed the 4th warder.
Roughly 15 minutes laster, GM Valdelmar comes in and has this to say.
[Tue Jun 05 00:37:10 2001] Valdelmar shouts, 'Everyone that is in this zone, has a corpse in this zone, or was involved in the invasion of this zone is receiving a warning for Exploitation.'
Now this is where it gets good. When asked what exactly we exploited, here was the answer:
[Tue Jun 05 00:44:50 2001] Valdelmar tells you, 'We witnessed your clerics below the bridge keeping the warders agro by complete heal so that the tanks could safely kill. That's exploitation'
Now, anyone who plays the high EQ game or has a reasonable knowledge of EQ game dynamics knows that this completly IMPOSSIBLE to exploit.
The mobs summon ability negates this exploit 100%. If the clerics are top on aggro list, they get summoned up from below the bridge, and killed nearly instantly. The mob was on ME (the warrior) the entire battle, besides when it decided it was mad at my clerics - which is when it killed them in no time flat.
The full story, with screenshots, is at this link.