Today marked the third time I attempted to use the Facebook iPhone app to comment on someone else's status only to have it fail due to an error and lose my comment.
Golden rule: Don't lose data!
So I deleted it today. Not worth putting energy into it only to see it flushed. At the very least it should keep the comment around in some sort of draft state so it can be dealt with later but to just lose it is ridiculous.
I am very close to closing my Facebook account anyway since I get no value out of it at all. Zero.