If you don’t follow the WordPress upgrades as they come, you might get hacked.
Joe Biden’s blog is (as of this moment) hacked with pharmaceutical spam in the footer. If you have Javascript enabled, you don’t see it. But disable it, and it looks like this:
[tags]Ike Pigott, Occam’s RazR, politics, Joe Biden, WordPress, spam[/tags]
Thanks for making my day LOL!