You make some excellent points Brown Rat and though I don't see the island in quite the same benevolent or positive light; I do think that the 'real' story is probably far less sinister than we've been led to believe.
I do like your theory about the black smoke-cloud and you may be right about it being attracted by anger. Yes; it did encounter Locke once and did
not attack him. But then again - the smoke-cloud attacked & killed Echo for no apparent reason. I don't remember him expressing any negative emotions that time; I think he was just walking in the jungle and next thing he knew...whip, bang - he was being flung around amongst the trees.
I have to admit that my heart broke for Kate after she apologized to Jack. He kind of brushed it off and then asked after Juliette. It was clear that Kate realized that she had 'lost' the special place she held in his esteem.
I don't think Juliette is a mole, though it is very strange that she ended up in the jungle with Kate while Jack & Sayid were left behind. What was the purpose of that? I have no idea what the white-flashes were but I'm sure it will prove to be significant later on.
I think that Ben abandoned Juliette because he knows that he cannot trust her anymore. What I don't get is Jack's total blind trust in her fealty. Sayid doesn't trust her one bit and Jack
should be more cautious. I think his loyalty will end up biting him in the butt because it seems clear that Juliette's only goal is to leave the island and go home. I think she would turn on anyone if she thought it would get her one step closer to getting off the island.
I think that we'll see Locke do more than just confront his father. He has definitely evolved a lot while on the island. Most notably - as Trey said - when he shoved the eye-patch dude in to the fence. He showed no remorse. He also coldly and deliberately stole the C4 and plotted to blow up the submarine; without telling his so-called 'friends' one iota of his plan. Clearly...the island has changed Locke in many ways. And now he's thrown in with the Others. I'm sure that whatever happens with his father, it will be unexepected.
Did you catch the previews for next week? Sayid seems intent on getting the 'truth' from Juliette. If she
were a mole...what would her purpose be? The Others pretty much know what they need to know of the Lostaways and don't appear to have any further use for the group. So why send in Juliette as a mole?
I LOVE Lost and all these mysteries! LOL