Used to be a pretty huge /b/tard
Yeah...the infamous /b/ my roomie at uni got me into it, we "channed" every night for a few months.
Honestly, it was a fun place if you could handle it.
Was kind of like internet freedom in it's purest form.
You kind of become immune to the crap and find the gold. There was lots of great stuff on /b/
Also I got TONS of awesome wallpapers and pictures from the whole site. Not to mention that's where pretty much every meme and big thing on the net comes from so it was kind of fun being right at the start of it all.
Anywho we were kind of oldies (this was in 2008) and the site really went down hill. Mainly by n00bs who ruined a lot of its fun and broke the cardinal rule, I mean hell..it's now brought up on coaster forums ; )
But yeah, was a fun lil site that was kind of a test of will and tolerance. Many would be surprised but you need to be an open minded, tolerant and generally good person too "get" /b/ and really enjoy it.
Also have way too much time to kill, and thankfully we quit that place a while ago. Got boring.
edit: The guys who took the "anonymous" thing really seriously were losers, 4chan was just about fun not pestering scientology (granted that's fun) and hacking websites and being noble pirates...