^ This proves Moot's point. Anonymity is necessary because it protects people from this kind of thing. The kind of holier-than-thou people that would shut everyone up because they feel "offended" and only want to see people's views they agree with or feel comfortable with and label the rest racists, bigots, or whatever else they can come up with.
Yes, there are some sick ****s on 4chan, but that's just too bad, ignore it, you're an adult. It's the most creative place on the internet and some of the stuff there is pure genius. Probably
95% of memes originate there, and the rest from Youboobtube.
If some pictures and words on a website bothers someone that much, I can't imagine the suffering they go through on a daily basis when faced with actual real life, which is far, far worse.
Edit: Besides, any group that (even almost) gets Justin Bieber sent to North Korea can't be all bad...