World2ch is an anonymous BBS inspired by and originally created by 2channel. If you are not familiar with 2channel and anonymous boards please read the guide to Anonymous Boards first.
Any kind of topics are welcome; anything goes! You can post anything you wish but in general users want posts to be something interesting, funny, or something that can cultivate good discussion.
There are a large number of characters which 2channel and textboard users have created which are well known among the community (all text art is termed AA). Each character generally has a gag or gimmick that they use in various situations across the board. You may see a thread dedicated to a single character saying different things in whatever style fits him/her. There is a list of common AA characters that appear on world2ch at the bottom of this page, you can use these lists to copy and paste (kopipe) for your posts.
The problem being is that you either don't have MS PGothic, Monafont or a similar font for viewing AA Characters. These fonts are used for viewing AArt (ASCII Art) or more commonly known as Shift_JIS Art. Shift_JIS art is used commonly on text based boards, and without the right font to display them, they appear as mangled characters. (example of AA Characters can be seen here.)
In order to make sure that your browser is viewing Shift_JIS Art properly, you may have to do the following (if your browser does not automatically use Monafont/MS PGothic/etc. to view AArt):
(In Firefox, set it up in Tools -> Options -> General -> Fonts & Colors -> Advanced -> Fonts for Japanese. Also set up your encoding (under View) to auto-detect Japanese). Note that this variates between browsers and different versions of Firefox.
And to spare you the time of searching for them, here are the links to the fonts used to view AArt: