When people think of 4chan, they mostly think of /b/. Which is a shame, because /b/ IS the fetid pus-weeping shithole that everyone thinks it is. However, the other boards are places of incredible awesome, especially /tg/, /wsg/, /co/, and /x/. There are many great things that have come from there, from the Angry Marines to the SCP and Slenderman, and probably 50% of all memes. In a way, it's interesting that so many internet goers have a fear and misunderstanding of one of the primary sources of internet culture.