To add to what has been said - on 4chan, the very "controversial" topics are beaten over and over and over again. Go to /pol/ and you will see at least two ras

To add to what has been said - on 4chan, the very "controversial" topics are beaten over and over and over again. Go to /pol/ and you will see at least two rasict threads at any given moment, then some other name-calling and misoginy. Go to /g/ and you will see non-stop dumb OS wars ("Mac OS X sucks!" - "STFU, your mother is a whore"), and so on. Feminism, homosexuality, religion, those topics are always popular no matter the board.