I think that the original intent of this mention was that Futuba Channel (2chan) was one of the inspirations of 4chan and other anonymous(adjective) imageboards where Anonymous(group) took root. I'm not sure of a proper way to include this in the article, so I didn't edit. However, I do feel that Futuba played an important role in the development of Anonymous(group), and may deserve a mention here. I don't think that discussions about Japanese culture are relevant here as Futuba channel welcomes international users. Christopher Poole (moot, the American creator of 4chan) was an active user of Futuba channel. "During the creation of 4chan, he obtained the source code for the Futaba Channel website, and translated the Japanese text into English using Altavista's Babelfish online translator." (From the wikipedia 4chan article http://en.wikipedia.org/wiki/4chan 
 The anonymous(adj) nature of Japanese imageboards is what lead to the development of Anonymous(group.)