Our real question is: who are the 28,864 people who are actually fans of the page?
The airport's official statement on the new pagewhich combines their old "Governmental" page with their old "Places" locationsays that "fans and followers can now check-in, receive up-to-the-minute information on airport conditions, videos, photos, flight delay, travel-related news, and much more."
We understand the check-in part as we're Foursquare people ourselves, but that was already being taken care of. And before you ask about whether you're now supposed to Like posts about flight delay info, note that the top post right now is "Morning! Due to weather conditions, flights from ORD and EWR are experiencing delays." And that it does indeed have 8 Likes.
LAX has also left the wall open for user generated posts, presumably because no one there has ever seen the YouTube comments section. Naturally it's filled with contributions like "show me something good about terminals 6, 7, 8...", "wkwkwkwkwk", and "good los angeles." Social media is magic.