Most people have yet to publish their timelines, since the feature only became available across the site last Thursday and Facebook has a seven-day grace periodfor people to choose what to put on the advanced profile before it publishes for the entire world to see.
I wonder whether the grace period effectively extends the testing of this advanced profile, since Facebook can respond to feedback from the less-technologically inclined types who have just begun to tinker with the timeline over the past week. Even techie types continue to find things that might resemble bugs as much as features.