I agree, they've pretty much broken every single UI convention by having information chronologically separated in between columns. As a society, we're used to following down a column because of the breaks, like a newspaper. For some stupid reason, Facebook has broken this convention and made posts go back and forth between the column break which is idiotic.

What I despise is the lack of privacy, because if I tag a photo with a friend's name, all their friends can see it, regardless of my privacy settings which forces me to no longer tag my friends.

I basically have stopped using Facebook except for reading up on the newsfeed.