This has worked for a while, it's just much more apparent on his posts:<p><a href="https://www.facebook.com/note.php?note_id=496077348919" rel="nofollow">https://www.facebook.com/note.php?note_id=496077348919</a>
The like updates are timed improperly and the number keeps going down and then up and then down. I got a lot of shit at work for a similar bug on a JS ticker, I'm glad I'm not the only one!
Doing a little network sniffing this seems incredibly inefficient. Apparently the page is polling the server up to 8 times per second and getting back a 7-800 byte chunk of Javascript. The infrastructure to support this at Facebook's scale is mind boggling. This is the kind of stuff that Websockets was invented for.
It has done the exact same thing for my friends posts for a looooong time. This isn;t specific to his account, its just more prominent because there are more people "liking" it.
If they keep adding people at the rate they are, in 10 years they'll have wired together the entire human race. I'm not sure if I should be scared or thrilled or skeptical.