I'm almost willing to bet that everybody who reads this article is going to wince at first, but then carry on like normal afterwards. There are actually a lot of things that carry worse germs than a toilet seat....purses, money.....even other people's hands.
I know the keyboards I use are relatively clean. The one at work is only used by two people (myself being one of them), and the one home? Me, myself and I. I keep some hand sanitizer handy just in case, though.