At least not in California anymore:
Two women who used Twitter to anonymously accuse Justin Bieber of sexual assault may be identified after a judge ruled that the star is allowed to subpoena the social media platform for the info.
Deadline reports that Los Angeles Superior Court Judge Terry Green ruled in Bieber’s favor Thursday, allowing the “Sorry” singer and his attorneys to demand Twitter turn over the identities of these alleged victims.
“We just want to uncover who is behind these two accounts, and it may be the same person,” Bieber’s lawyer, Evan N. Spiegel told the court. He also called the claims “provably false” through eyewitness and photographic evidence.
This would appear to be a very bad time to be someone who posts anonymous written defamation about people on a site operated by a California corporation.