It's well publicized that the WikiLeaks had its access to Amazon and PayPal revoked due to pressure from the U.S. government. So as to not appear completely at the beck and call of government they may have spouting legalese about being worried about their servers being used for illegal purposes, but it's all bull until a lawsuit is actually filed. In any case, AnandTech is not in a comparable situation.
That governments are rushing to shut down something does not necessarily mean that thing is wrong or illegal.
The comparison to linking to pirated material is incorrect. It is not illegal to link to The Guardian, The New York Times or Der Spiegel. It is not illegal to link to a page that instructs people on how to host material already publicized by other mirrors and the aforementioned three media sites. Of course, the administration of these forums could decide they do not want links to any of the above on their site, but that would be due to their political persuasions, not because it's illegal.