WoWWiki has a strong commitment to remain within the appropriate legal boundaries for an official Blizzard Warcraft fansite. This leads to the ultimate consequence that contributors of WoWWiki are under no circumstance allowed to add information or pictures to the encyclopedia which Blizzard wouldn't like to be out in the public. Usually Blizzard does not mind, but when a game is in alpha production a non-disclosure agreement (abbreviated to NDA) is enforced that all participating which obliges all participating users to abide by strict rules. From the official website: