I'm honestly surprised that someone who posts on a gaming forum doesn't know what 4chan is.
And by the way, only /b/ is bad. Don't hate the whole community for what that awful section does.
Gonna have to disagree with you on that. Not trying to hate, but just because /b/ is the worst of it doesn't mean much else of the website is good.
You're right that there are some readable sections of the website, but so much of it is just unfunny, vulgar for the sake of being vulgar, or just ungodly repetitious.
It's like Reddit without user accounts and being more likely to see photos of naked or dead people inadvertently. I would suggest people just check it out themselves if they aren't squeamish, because there are going to be differing opinions on whether or not its a worthwhile website to frequent. My answer would obviously be "no".