FBI subpoenas the web registrar behind Archive.is

Although it's been a popular website for over a decade, I've never even heard of it until today. Not to be confused with the Internet Archive (archive.org), a similar web presence by the name Archive.is aka Archive.today aka Archive.is aka Archive.ph is being investigated by the FBI, they want to find who owns it. It seems a little peculiar the FBI is digging into this. I looked through the comments that turn political, I doubt it's politically motivated but wonder why the FBI is digging into it .

https://www.theverge.com/news/815691/fbi-subpoena-archive-is-owner

Archive.today has been around since 2012, but the identity of the site’s owner remains unconfirmed. Someone who goes by the common Russian name, or possibly pseudonym, “Denis Petrov” from Prague, Czech Republic registered the original domain of the site, but little else is known about who that person is. The site is commonly used to dodge paywalls, similar to 12ft.io, which the News/Media Alliance successfully had taken down earlier this year, claiming it “offered illegal circumvention technology” to access copyrighted content without paying for it.