Yes, /b/ seems to be the only reason people hear or know about 4chan. But /b/ has done this sort of stuff in the past for massive 'lulz', and they have also stopped stuff like animal cruelty, or even that one kid who decided to post a pic of his feet in people's salad (which got him fired).
Good times here, http://knowyourmeme.com/memes/tom-green-raids
There's another 50 boards on 4chan ranging from animals to papercraft. Explore.