Look, you didn't like the joke. That's fine.
I didn't laugh my ass off either, but neither did I inflate like an indignant puffer fish.
I spent some time looking around that site, and I suspect you wouldn't like much of it. Political "dead baby" jokes.
From IMAO's "About" page:
IMAO (In My Arrogant Opinion) is a humorous blog started by me, Frank J., back on July 9th, 2002. It is a funny website that is mainly about politics because politics is funny. If you do not find this blog funny, then obviously you are reading it wrong because many other people find it funny. There may, in fact, be something wrong with you. You should have a doctor look at you to make sure it’s not fatal.
If you are not dying of a humor-inhibiting disease, then you should find much happiness from reading IMAO. A good place to start is the essay Nuke the Moon which is one of IMAO’s most popular pieces. Then you can check out what’s on the front page which is updated multiple times daily by me or the other IMAO bloggers. You can also have fun looking through the archives (listed on the right sidebar) or Google search (left sidebar) for a particular topic. There’s so much humor on IMAO that it seems extremely stupid to offer it all for free, but lucky for you we are very stupid.
Have fun!
Frank J. Fleming is listed in Wikipedia as an "American columnist, author, and satirist." I suspect from some of his writings that he has committed Christianity.