Elon Musk is no fan of the Center for Countering Digital Hate. The non-profit group has published reports tracking what it calls a rise in “neo-Nazis, white supremacists, misogynists and spreaders of dangerous conspiracy theories” on the X platform, which changed its name from Twitter after Musk bought it.

Musk, who has called the center “truly evil”, said that it backed “propoganda” and “censorship” and referred to its CEO as a “rat.” Lawyers for X Corp. sued the center earlier this year, claiming it had cost X “at least tens of millions of dollars” in revenue from lost advertising and other costs. But the lawsuit was styled as a breach of contract suit targeting the way the center gathered information from X rather than bringing defamation claims.