Yea, but you remember Ethan right? He was in the first set of people on the beach and said he was in the plane wreck, then later kidnapped Claire to godknowswhere and hung Charlie for dead up in a tree. Who's to say they didnt have similar problems?
You say digging a pit isnt productive? Hurley built a golf course ffs..lol! A pit to keep live boar / animals for food sounds like a good plan to me.
Again, this is purely speculation...
