The Warhammer Alliance Forums have word that GamesWorkshop has filed a lawsuit against Curse, Inc. over the operation of this site dedicated to Warhammer Online (thanks MMORPG.com). Here's how they describe this puzzling turn of events:

We wanted to inform our community here on WarhammerAlliance.com that Games Workshop has filed lawsuit against Curse for operating and maintaining WarhammerAlliance.com. We feel this is a blatant disregard of the needs of Warhammer fans, and the community we've worked hard to set up. The lawsuit cites trademark infringement, cybersquatting (on the domain name), dilution and unfair competition. You can check out the full complaint here. It also states that GamesWorkshop was unable to contact anyone who was an administrator or decision makers at Curse (despite the numerous links on our site...).

We are shocked and surprised by this filing when this site, created in 2005, is well known for being one of the biggest Warhammer Online game fansite.