Ok, so it's not the most reliable of sources, just wondering if anyone else has noticed this? And if it's true, why?

World of Warcraft (en) Forums -> 21/07/09 Ulduar Hotfixes - Live on EU?

For those who don't want to click the link, the following hotfix was deployed on US servers over a week ago but does not seem to be active on EU servers:

7/21/09

* Curse of Weakness no longer stacks with Demoralizing Shout or Demoralizing Roar.
* The following Ulduar bosses have had their melee damage slightly reduced in both normal and heroic versions: Algalon, Thorim, General Vezax, and Steelbreaker.

Source: World of Warcraft - English (NA) Forums -> Recent In-Game Fixes - 7/7/09