I've watched every episode. The 4th and especially the 5th seasons have been not so good. I've watched this much of it though I feel like I have no choice but to finish it.
You're crazy.
This season has been on of the best. They are actually explaining things in past seasons that made you go "what the fuck?" and the explanations actually make sense (for the most part).
A lot of it has to do with ancient mythology and the such. That big statue is Taweret the egyptian goddess of pregnancy and childbirth and when it was whole people could have children on the island. Fast forward to it just being the foot and no child conceived on the island can be born because both the mother and child die during child birth. What that means on the show? Fuck if I know but that's what the statue is.
I just hope there is nothing about aliens in it at the end. That would make the whole show officially suck for me.
The last two episodes have been really good.
Also, I believe Freaks made a LOST thread that got pretty big but when someone erased a lot of his posts it got deleted.