4chan's first boards were originally primarily used for posting pictures and discussing manga and anime.
The site quickly became popular, expanded, and now features boards dedicated to a wide variety of topics, from anime/manga to videogames, music, literature, fitness, politics, and sports.
As making a post without filling in the "Name" field causes posts to be attributed to "Anonymous", general understanding on 4chan holds that Anonymous is not a single person but a collective (hive) of users.
4chan also has a junior moderation team, called "janitors", who may delete posts or images and suggest that the normal moderation team ban a user, but who can not post with a capcode.
For instance, on December 28, 2010, 4chan and other websites went down due to such an attack, following which Poole said on his blog, "We now join the ranks of Master Card, Visa, Pay Pal, et al.—an exclusive club!
" Upon the creation of 4chan, Poole encouraged users from the Something Awful subforum titled "Anime Death Tentacle Rape Whorehouse", who also happened to be dissatisfied with the forum, to discuss anime on his website.
On January 15, 2008, a 4chan user posted to /b/, suggesting participants "do something big" against the Church of Scientology's website.
/r9k/ was restored on October 23, 2011, along with /hc/ ("Hardcore", previously deleted), /pol/ (a rebranding of /new/) and the new /diy/ board, in addition to an apology by Poole where he recalls how he criticized the deletion of Encyclopedia Dramatica and realized that he had done the same.
The raid drew criticism from some 4chan users who felt it would bring the site undesirable attention.
/b/ has a "no rules" policy, except for bans on certain illegal content, such as child pornography, invasions of other websites (posting floods of disruptive content), and under-18 viewing, all of which are inherited from site-wide rules.
It is provided to its users free of charge and consumes a large amount of bandwidth; as a result, its financing has often been problematic.
Poole acknowledges that donations alone cannot keep the site online, so he has turned to advertising to help make ends meet.