I shouldn't be reading some of these posts while drinking coffee...!
Now, moderation-wise... think in terms of legal liability. If it will render the site liable, it will be moderated. If it offends a lot of people, it will be moderated. If it offends a few people but not a lot of people, and won't render the site liable, it won't be moderated.
There's a fine line between satire and gross bad taste. A lot of comedians either find that line or end up cleaning toilets in public parks...
Monty Python found the line and... well, some of their material stepped over their edge, but mostly it found exactly the place where it teetered and made the entire world laugh.
Rik Mayall and Adrian Edmondson found the line and shoved it over. "Good taste?" they said to each other. "Good taste? Shall we?... Naaaah."