Lost and Found

So now that Lost is on a month long break before the next new episode I've been thinking back on some of the things they setup in Seasons 1 & 2 and then never paid off.

• Polar Bears - The bears were fairly prominent in Season 1 and seem to have just disappeared. I mean you'd think that something as big as a polar bear would be hard to miss. Oh and since polar bears are carnivores and the only decent sized prey on the island are people you would think that they would be sniffing around pretty often.
• The Black Smoke "Monster" - I'm sorry but they need to explain this one better. It was a regular appearance early in the series and now its no where to be seen. They used it to kill Mr. Echo and then just let that mystery die...seems like such a shame.
• The Others/Voices - Remember when Lost first started and they portrayed "The Others" as being come kind of supernatural wraiths of the jungle? All the spooky voices in the rain and shit. Now they're just a bunch of jungle hillbillies running around shooting everything...WTF?
• Dharma Initiative/Alvar Hanso/Hanso Foundation - Remember when the big mystery was The Hatch? They NEVER paid off on the evil corporation behind all of the Hatches hidden throughout the island. They just showed Ben and The Others killing off the Dharma people and closed the book on that side story. Bitches.
• The numbers - Why were they such a big deal? What are they not a big deal now?