So I’m a bit late on this but didn’t want this “UX FAIL” to go by without a mention.
The Google 11th year anniversary logo celebration was such a usability issue that I got several emails from friends telling me to look at the spelling error on Google. But I have to wonder if they let it roll just to get/keep people talking. Of course by the end of my rant I then discovered their genius. Be careful you don’t get too caught up in your own knowledge you just might miss something… ll-11..;)