My question is, why are they still living on the beach? Why haven't they moved to the Other's village, with perfectly good houses, running water, electricity, etc.?
Here is one of my favorite websites that discusses each Lost episode. Some of these people have too much time on their hands! But it does give you insights into some things you may not have caught while watching the show. http://blogs.usatoday.com/popcandy/2007/04/lets_talk_lost__1.html#uslPageReturn