This article pretty much sums up this season of Lost.
"Stop giving excuses and start giving answers. I'm not talking about wrapping up all the big mysteries, but for crying out loud, give us something. With so many completely unanswered questions about the island, there's no reason every episode shouldn't contain half a dozen new, tantalizing tidbits of information. Go back to Black Rock, show Jack's dad again, give us anything. You can berate people for lack of patience, but the bottom line is that a compelling plot needs to have constant motion. And instead you gave us Sawyer and Kate fucking in a bear cage for three episodes."