Well I agree with you on your first view. There is a constant battle between our concious and subconcious. With lucidity occuring when the concious successfully takes reign in the subconcious world to an extent.

For the comment on your second point. I think we'll never know. How do we know that the level of self-deception by our subconcious is so great that we believe that we are in control during lucid dreams when all along the subconcious had it planned out? How do we know if the subconcious isn't just filling out all the choices we think our conscious mind makes during lucid dreams?

For the third area regarding natural and elite lucid dreamers. I agree that there are people out there that are full of crap and lie to get the attention they seek. But I guess there is still a bit of inherent trust between the members of this community that most of the things we share are true. People still have consciences, no matter who they are.

Lastly, I personally don't believe in the dream world, but I'm open for the day that proof is shown to me of such an existing place. It would definitely be cool if the dream world was actually a real separate plane of existence then real life, but the concept in of itself is a bit farfetched for me to swallow directly.