I think that the entire phrase "I don't believe in..." is retarded when referring to a particular thing.

I don't believe anything.

I don't believe that OBEs exist, but I also don't BELIEVE that they don't. That takes just as much BLIND CONVICTION. It's really very ignorant. The word is really thrown around way too much, isn't it? I would like PROOF that something does or does not exist. Even then, I probably won't believe anything based off of some human proof.
People are too quick to throw what they believe and don't believe into other people's faces. Why? Because they are important people! They are important, and they want everyone else to know just how important they are, by forcing their own opinions and believe down other people's throats.

Anyway, you do have to sift through some weird stuff on here, but lucid dreaming in itself is not only proven, but has been scientifically tested in a controlled environment. There's nothing supernatural about it.

As for OBEs.. Who knows?
Seriously... Who REALLY knows?

And if you do, you're a fool.