1. Posts that you've killed off with the "Hide Story" function resurrect themselves from time to time. Listen, if I've killed it, I really don't give a hoot about someone's new comment.
2. Posts are not in chronological order of their original posting. This is related to (1) above.
3. Some posts by my FB friends don't show up till days after they originally post 'em. WTF kind of tech savvy is that? How much was that IPO worth again?
I could go on. But time for you to sound off. What do you hate about FB?