It's just as much pointless as having a "spamming" forum.
In 2005 when I was with the *B2 squad, we played word association (and also 4-word post) at their forum just for kicks. Today here at CiX, I don't know why we play it. It's just one of those mindless things that only takes a second. I find much more enjoyment out of 4-word post instead because it's something that actually requires a bit of creativity. When you go back to the first page of that thread and start reading, the compilation is hilarious. We should compose a book out of that thread sometime, like an ebook and charge a lot of money for it. It would have the most random content ever! And nobody would buy it...