The billionaire, Louis Bacon, is the founder and CEO of a hedge fund company, Moore Capital Management. He alleges the anonymous commenters posted defamatory information about him on Wikipedia, the Denver Post, and WordPress.
A UK judge said Bacon can e-mail court orders to the three sites calling for the information. Bacon is suing in the UK, but all three companies are U.S.-based.
Parent companies for Wikipedia and WordPress (Wikimedia Foundation and Automattic respectively) both reportedly told the Guardian they need a U.S. subpoena to turn over information.
The Guardian added that last year, Bacon “made a similar case against the UK-based website host, justhost.com,” which “complied with that order.”