apart from designated containment boards (/pol/, /r9k/, /trash/, /mlp/) 4chan in general is full of "normal" people (whatever that even means). you can expect that anyone who has spent any prolonged time on the internet in the last 10 years has at least some knowledge of 4chan. hell, i discovered it in 2007 and people were already complaining about 4chan going mainstream. lolcats, rickrolls, internet terrorists, anonymous, project chanology, lulzsec, the fappening, etc - 4chan has had so many instances of blowing up in mainstream media, it's honestly a surprise not more people are here. 4chan is one of the biggest forums on the web these days.
most of 4chan's visitors now have dayjobs, girlfriends, tits they aren't showing, aren't virgins, and don't even live in basements. oh the times - they are a-changin' :-)
