I read Nathan Heller's Shouts & Murmurs last night. At first it was LOL-level hilarious. Which was interesting because I think of Nathan Heller as a light-toned but fairly serious writer (even now I'm still slogging my way through his Joan Didion piece). It was original and really funny.
But then about midway through it devolved, like most S&Ms, into such over-the-top absurdity it wasn't funny anymore. Maybe he felt he had to go that way because it's a sensitive topic (based on the politician who made headlines for praising Hitler in a speech) to show it was really, really not meant to be taken seriously. But a) I think anyone who reads the New Yorker would get it and b) that pattern, kind of subtly funny at first but steadily ratcheting up until it's ridiculous and less funny, is so typical of S&Ms.
I've never understood why a humor column in the New Yorker, which you'd think could access the funniest writers in the business, is so often less funny than your standard SNL sketch.