Games Workshop, the owners of the Warhammer IP, have filed suit against Curse Inc., owners of the vast Curse Network of sites, which includes Warhammer Alliance.com, the subject of the suit.
Games Workshop is citing trademark infringement, cybersquatting (the Warhammer Alliance domain name), dilution, and unfair competition. According to Curse.com administrator DoranM, the complaint also states that Games Workshop was unable to contact any of the Curse administrators or "decision makers," despite the contact links available at the site.
You can view the full complaint here.
[Thanks sh4pnel for the tip!]