Today's comics use four-letter words as a shortcut to thinking. They're shooting for that big laugh and it becomes a panic thing, using four-letter words to shock people.
On Update, the only real original thing was trying to take away the cleverness of the punchline and make it as blunt as possible.
I think the longer a sitcom is on the air, by necessity, the dumber the characters have to get: otherwise, they would be learning and growing, and they won't be funny, so they have to get more and more extremely whatever they are.
I don't know how many sacred cows there are today. I think there's a little confusion between humor and gross passing for humor. That's kind of regrettable.
There is nothing worse than annotated humour.
After a while, a joke, if you say it too much, just becomes contrived, or fake-sounding.
Then Saturday Night Live spawns... well, everything right down to American Pie 9, where all humor has to be irrelevant, which can get a little tiring.