My other big questions:

Were there not two factions of Others? The Jacob Others and the Smoke Monster Others?

And if there were two factions of others, which batch did Linus fall into? If he was one of the Smoke Monster Others, why did Richard hang out with him? Did Richard use the Smoke Monster to heal Linus?

Which batch of others was Sahid killing off (Jacob others or Smoke Monster others)?

Whose temple was it? First it's Linus and the Smoke Monster's temple, then it is run by the Japanese Samurai Dude? Why is the Japanese Dude in charge when Richard is Jacob's number 2? Or is Richard the permanent number 3? What is the point in sending anyone to kill a smoke monster with a dagger? The Japanese Dude deserved to be offed if he is going to send anyone to kill a smoke monster with a dagger.

Why even try to use bullets to kill a Smoke Monster? Why not a giant fan? Why not use a weapon that emitted from the big electronic barrier?

If you have enough money to buy a submarine, couldn't you spend a little extra cash to bring a New Generator to keep the Electronic Barrier going?

The ending was interesting, but it raised far more questions than it answered.

What about the NUMBERS! They never answered the freak'n riddle about the NUMBERS!

And Walt didn't make it to the afterlife ... :-(