Deep sigh.
I'm all for keeping commons from being censored. I'm all for keeping all the Wikimedia projects from being censored... but on the front page? Seriously?
It has nothing to do with censorship and mostly to do with usability. You can go to Commons or Wikipedia AT WORK, AT SCHOOL or WITH KIDS PRESENT and avoid anything pornographic in nature by simply applying a small ounce of intelligence (IE don't search for "tit fucking"). We can keep the crazy censorship away if we, the commoners, apply some basic sense with these things. If we can't even do that, what school or work place is going to allow the use of Commons or Wikipedia?