Let's make this simple - the idea of the site as an image board is great, and some of the sections are where I find some of the most interesting conversation on the net (primarily Art/Critique and Traditional Games). But the site is rife with immature folks and certainly not a place for much anyone under 18 to be.
Shin-chan hate site. They have no respect to late manga creator Usui and his family.
This site also has child pornography (both Loli and Shota). My Internet provider (AT&T) should've kept this site blocked for their illegal distribution of Loli and Shota. It's more than just a DDoS attack.
Plus, you'll never know that this site has malware especially the bad joke scripting (both HTML and Javascript).
Site based on an image board script. /b/ is one of the worst places to go, with adult content and offensive material, although some areas are perfectly fine.